AITA for Kicking My BIL Out After He Claimed He Was My Son’s Father?
In a situation that started with love and careful planning, things have now become very tense for OP (30F) and her wife (29F). The couple went through infertility struggles, family pressure, and emotional stress before having a baby through IVF. OP used her egg, her wife carried the pregnancy, and her brother-in-law (BIL) acted as the sperm donor. Everyone agreed on clear boundaries at the time, and it was understood that OP and her wife would be the legal and full parents of the child.
As their son’s first birthday was coming up, the situation changed suddenly. The brother-in-law said he also wanted a role in the birthday celebration and claimed he should have a say because he sees himself as the child’s father. This shocked OP and her wife, as this was not what had been agreed before the IVF arrangement, therapy discussions, and family understanding.
OP reacted strongly and asked the brother-in-law to leave their home. She also said he would not be welcome back unless he apologized and respected the original agreement. This led to more conflict within the family. The sister-in-law became very upset and argued against OP, and now the family is divided over the issue. The mother-in-law has not taken a clear side but has suggested that the brother-in-law is “technically the father,” which has made things even more complicated.
Now OP and her wife are standing firm in their decision and focusing on their child’s well-being, emotional stability, and family boundaries. The situation has created a major family dispute involving parenting rights, IVF agreements, and questions about what role, if any, the donor should have in the child’s life.
The author of the post and her wife always wanted to have a baby, but the spouse turned out to be infertile, and the author herself has a medical condition that makes it dangerous for her health
Donor Agreement, Family Boundaries, and Parenting Rights (Easy English)
This situation is about a donor agreement, same-sex parenting, family conflict, and emotional boundaries. It is a sensitive topic involving identity, trust, and what makes someone a parent.
1. Donor Agreements and Legal Parenting Rights
In many countries, when someone donates sperm or eggs, they can legally give up parental rights.
This means:
- The donor is not the legal parent
- They have no custody rights
- They have no decision-making power about the child
In this case, the donor (BIL) agreed:
- He signed away his rights
- He said he would only be the “uncle”
So legally, he is not the father.
This is important in family law and donor agreement cases.
2. Why This Situation Became Emotional
Even if everything is legally clear, emotions can still become complicated.
For same-sex couples using a donor:
- The process is often long and emotional
- There may be infertility struggles
- There can be stress and sadness before pregnancy
So when someone later tries to claim “father” status, it can feel painful and confusing.
In this case, the child was carried by one partner, and both mothers are raising the baby together. They are the legal and emotional parents.
This is part of same-sex parenting and family identity issues.
3. Genetics vs Real Parenting
A big question in this situation is:
Does biology make someone a parent?
Simple answer:
- Genetics alone does not make someone a parent
- Parenting is about care, love, and daily responsibility
Real parenting includes:
- Feeding and changing the child
- Being there every day
- Teaching and supporting the child
- Emotional bonding
This is what defines modern parenting and family bonding, not just biology.
The donor’s role ended when he agreed to be a donor, not a parent.
4. Family Boundaries and Conflict
When the donor tried to act like a parent, it caused conflict.
The main issue is:
- Clear boundaries were already set
- The agreement was broken emotionally by one person
When OP asked him to leave after the conflict, that was a boundary decision.
Healthy families:
- Respect limits
- Follow agreements
- Communicate calmly
Unhealthy situations:
- Ignore boundaries
- Create pressure or guilt
- Refuse to accept agreements
This is common in family boundary setting and emotional conflict management.
5. Emotional Impact on the Parents
This situation is especially painful for the mother who carried the baby.
She may feel:
- Her role is being ignored
- Her experience of pregnancy is being dismissed
- Her bond with the child is not respected
This can lead to emotional stress and hurt, especially in infertility and family building journeys.
6. Role of Extended Family (MIL Situation)
The mother-in-law (MIL) agrees partly that the donor was wrong, but also says he is “technically the father.”
This creates confusion because:
- It does not fully support one side
- It avoids taking a clear position
When family members stay neutral in serious conflict, it can make the situation worse. This is common in extended family conflict and communication problems.
For OP, this lack of support may feel like:
- Emotional distance
- Lack of protection
- Unclear loyalty
7. Was OP Wrong? (Simple Answer)
Based on the situation, OP is not wrong.
Because:
- The donor signed away legal rights
- Clear agreements were already made
- Boundaries were broken by the donor
- She protected her child and family stability
This is not about being harsh. It is about protecting family boundaries and child wellbeing.
Most commenters gave the author their support, claiming that the brother-in-law was acting unreasonably here
Final Thought
This situation shows how complex donor agreements, same-sex parenting, and family boundaries can be.
Even when legal rules are clear, emotions can still create conflict.
But at the center of it all, parenting is not just about biology—it is about showing up, caring every day, and building a safe and loving home for the child.
