Your child is 2 to 5 years old. They have started asking the questions kids ask. Where do babies come from. Why are there photos of doctors. What is that little fridge thing on the clinic letterhead.
You went through IVF or IUI or used donor gametes to have them, and you have been waiting for "the right moment" to talk about it. This post is about how to tell a child about IVF and donor conception, why the right moment is already here, and what to actually say.
The donor-conception research literature has converged on the same advice for two decades. Tell early. Tell often. Tell honestly. The instinct to wait for a moment that feels grown-up enough is well-meant and is not what the evidence supports. This post lays out what the research actually shows, what language works at each age, and how to handle the questions you have not anticipated.
What the donor-conception literature actually shows
Susan Golombok's longitudinal Cambridge studies have followed donor-conception families for decades. The 2017 follow-up of families formed through reproductive donation reported that adolescents told early and incrementally about their conception story showed better psychological outcomes than those told late or accidentally.1 The same research group's 2017 analysis of age of disclosure found that the children who learned in adolescence or adulthood reported poorer trust and family functioning than those who had always known.2
The broader pattern: outcomes for IVF-conceived and donor-conceived children, in families that practice open disclosure, are similar to those of naturally-conceived children.1 The harms historically attributed to ART or donor conception are largely absent in open-disclosure families. Disclosure is associated with better parent-child communication, which is the more general benefit.
"Early" in the literature means by age 7 at the latest. Ideally, the conception story is part of the child's life narrative from preschool age, woven into the same kinds of stories families tell about how everyone got here.
Why "we'll tell them when they are older" is the wrong instinct
The instinct to wait is built on an assumption that does not hold. The assumption is that the story is too complex for a young child and that it will be confusing. In practice, young children handle the story in age-appropriate chunks. The complexity comes from telling it once, late, as a discrete revelation, rather than from telling it as ordinary family information from the start.
A late disclosure becomes a "revelation," a discrete event that changes the family narrative. An early disclosure is a fact the child has always known. Children who learn accidentally (overhearing relatives, finding paperwork, getting an unexpected ancestry test result) report the worst outcomes in the literature.
This last point has become more urgent. Consumer DNA testing (23andMe, AncestryDNA) has effectively ended practical secret-keeping for donor-conceived families. A surprise donor match in adolescence or adulthood is now a documented and increasingly common scenario. The family conversation is going to happen; the question is whether the child learns from you, in their own time, or learns from a test result.
How to tell a child about IVF, age by age
Children do not need the technical vocabulary at age 3. They need a story that fits in their developing sense of where babies come from, told in language they can hold.
Ages 2 to 3: "Mama and Daddy needed a little help from a doctor to make you. The doctor put a tiny egg and a tiny seed together, and that grew into you." Substitute the family configuration as relevant: "Mama and Mama," "Daddy and Daddy," "Mama and her doctor." The mechanic is unimportant at this age; the relationship of the story to the rest of the child's life narrative is what matters.
Ages 4 to 5: Introduce the words "IVF" or "fertility clinic" the same way you would use the word "hospital." Add the why: "We wanted you so much that we went to a special kind of doctor who helps families."
Ages 6 to 8: Discuss mechanics in simple, accurate terms. Egg. Sperm. The lab. The freezer. The transfer. Children of this age often want concrete detail and can hold it. Address why some people need this help: "Some bodies need a little help to make a baby; ours did. There are lots of different ways to have a baby."
Ages 9 to 11: Deeper biology. The years of trying, if relevant, can be part of the story. Children often have specific questions about timing at this age ("how long did you wait?") and can hear the honest answer.
Adolescence: Full story available, including grief, cost, and the decisions that were made. The adolescent's own questions are the right driver of conversation depth.
For donor-conceived children specifically: The donor is part of the story from day one. The donor is not "your real parent." The donor is the donor. The parent is the parent. The language matters and shapes how the child constructs the relationship.
When the conception involved donor gametes
The donor-conception conversation is on the same timeline as IVF disclosure, with one additional layer.
Resources exist for the donor-conception specific story. The Donor Conception Network in the UK and SEEDS in the US have published age-banded guides. Both have produced picture books that can sit in the home library and normalise the story for the child as they grow.
Legal frameworks vary by jurisdiction. In the UK, donor-conceived children have a right to access identifying donor information at age 18, following the HFEA 2005 reform.7 In the US, donor arrangements vary: anonymous, open-ID at 18, or known. Your child's story should match the actual arrangement. Telling the child "you can never know" when in fact identifying information will be available at 18 is the kind of error that resurfaces badly in adolescence.
Use "donor" as the word for the donor. Avoid "real mum" or "real dad" or "biological parent." The parent is the parent. The donor is the donor. Both can be honoured without conflating them.
The ASRM Ethics Committee's opinion on informing offspring of their conception by gamete or embryo donation is clear that disclosure is the recommended practice.4 Imrie and Golombok's work on long-term outcomes of children conceived through egg donation has further refined the picture and continues to support open, early disclosure.5

When IVF is not donor
If you used your own gametes, the conversation is simpler. "We needed help from a doctor to have you" is enough at preschool age. There is no third party in the story; the only adjustment from the standard "how were you made" conversation is that a doctor was part of it.
A few common parental missteps to avoid. Do not frame the years of trying as suffering the child caused. They did not cause it; they are the outcome you wanted. Do not lean on "miracle baby" framing if it makes the child feel they must perform gratitude. A photo of the embryo or the first ultrasound, kept casually in a family album, normalises the story. The story is medical, not magical.
Common parent worries
A few questions that come up in clinic, with what the research actually says.
"Will it confuse them?" No. Young children handle the story in age-appropriate chunks if you deliver it that way. Confusion comes from contradictions, not from accurate information.
"Will they love us less?" No. Attachment is unrelated to genetic relatedness in the literature. Golombok and colleagues have established this across decades of work in donor-conception families.
"Will they be teased at school?" Possibly, occasionally. Teasing in childhood happens about many things. The protective factor is the child being able to tell their own story confidently, which requires having always known it.
"What if I want to keep it private?" The family has the right to privacy from the public. The child has the right to the truth. These are not in conflict; you can tell the child without telling the neighbourhood.
"What if our extended family disapproves?" Your child's narrative comes first. Manage extended family separately. The child does not need to absorb their grandparents' discomfort.
Questions you may not anticipate
A few that come up in clinic and often catch parents off guard.
"Where is the doctor now?" Answer factually. "She still works at the clinic." Children like the continuity.
"Do I have any brothers or sisters who came from the same doctor?" Relevant for donor conception. If the donor was used by other families, honesty about half-siblings is the standard recommendation. The child can handle the concept; what is harder is being told later that the half-siblings have always existed and were not mentioned.
"Were there any other embryos?" Common, often unanticipated by parents. Answer at the child's level. "Yes, and we are deciding what to do with them" is sufficient.
"Why didn't you have me the normal way?" Reframe: there is no "abnormal" way. "There are many ways to make a baby. This is ours."
What both partners should do this week
- Agree on the family narrative. Specific language, the level of detail, what relatives know.
- Identify one age-appropriate picture book and put it in the home library where the child can see it.
- Decide where the IVF paperwork, embryo paperwork, and any donor records live, and what the access plan is as the child grows.
- Talk to your child this week. Not in a special sit-down. In the bathtub or in the car, naturally, when something prompts it.
What to ask the paediatrician or family therapist
If you are still working out how to tell a child about IVF in a way that fits your family, three questions to bring to a visit make the next step concrete.
- "Are there family therapists in our area who specialise in donor-conception or IVF families?"
- "Does our school's intake form ask about family structure, and how is it worded?"
- "What language do you use with families like ours?"
What's next
- For the pillar on secondary infertility, if a second is on the horizon: secondary infertility
- If you have embryos in storage: embryo storage decisions
- If you are deciding when to try again: when to try for a second
- For couple alignment on the family narrative: couple after baby, reconnecting
Sources
- Golombok S, Ilioi E, Blake L, Roman G, Jadva V. A longitudinal study of families formed through reproductive donation: parent-adolescent and adolescent-sibling relationships. Dev Psychol 2017;53(10):1966-1977. https://pubmed.ncbi.nlm.nih.gov/28758783/
- Ilioi E, Blake L, Jadva V, Roman G, Golombok S. The role of age of disclosure of biological origins in the psychological wellbeing of adolescents conceived by reproductive donation: a longitudinal study from age 1 to age 14. J Child Psychol Psychiatry 2017;58(3):315-324. https://acamh.onlinelibrary.wiley.com/doi/10.1111/jcpp.12667
- Blake L, Casey P, Jadva V, Golombok S. "I was quite amazed": donor conception and parent-child relationships from the child's perspective. Children & Society 2014;28(6):425-437. https://onlinelibrary.wiley.com/doi/10.1111/chso.12014
- Ethics Committee of the American Society for Reproductive Medicine. Informing offspring of their conception by gamete or embryo donation: an Ethics Committee opinion. Fertil Steril 2018;109(4):601-605. https://www.asrm.org/practice-guidance/ethics-opinions/informing-offspring-of-their-conception-by-gamete-or-embryo-donation/
- Imrie S, Jadva V, Golombok S. "Making the child mine": mothers' thoughts and feelings about the mother-infant relationship in egg donation families. J Fam Psychol 2020;34(4):469-479. https://pubmed.ncbi.nlm.nih.gov/31886697/
- Donor Conception Network. Telling and Talking series: age-banded resources for parents of donor-conceived children. DC Network; updated 2021. https://www.dcnetwork.org/
- Human Fertilisation and Embryology Authority. Donor-conceived people's right to information. HFEA; following 2005 disclosure reform. https://www.hfea.gov.uk/donation/donor-conceived-people-and-their-parents/
Common questions
When should you tell a child they were conceived through IVF or donor conception?
The donor-conception research literature supports telling early, often, and honestly. "Early" means by age 7 at the latest, and ideally the conception story is part of the child's life narrative from preschool age. Children told early and incrementally show better psychological outcomes than those told late or accidentally.
Will telling a young child about IVF confuse them?
No. Young children handle the story in age-appropriate chunks if you deliver it that way. Confusion comes from contradictions, not from accurate information. The complexity comes from telling it once, late, as a discrete revelation, rather than as ordinary family information from the start.
Will a donor-conceived child love their parents less?
No. Attachment is unrelated to genetic relatedness in the literature, a finding Golombok and colleagues have established across decades of work in donor-conception families. The donor is the donor and the parent is the parent; both can be honoured without conflating them.
What words should you use for the donor when talking to a donor-conceived child?
Use "donor" as the word for the donor, and avoid "real mum," "real dad," or "biological parent." The donor is not the child's real parent. The language matters and shapes how the child constructs the relationship. The donor should be part of the story from day one.
Why is keeping IVF or donor conception secret no longer practical?
Consumer DNA testing, such as 23andMe and AncestryDNA, has effectively ended practical secret-keeping for donor-conceived families. A surprise donor match in adolescence or adulthood is now documented and increasingly common. The conversation will happen; the question is whether the child learns from you or from a test result.