Some parts of your life are deeply personal — even when it comes to family.
On Reddit, a woman shared that her sister-in-law disclosed a very private detail about her son’s conception: that he was conceived using a sperm donor. This was something she and her husband had chosen to keep within a very small circle.
She explained that her husband had a vasectomy eight years ago after having two children, now 17 and 22, with his first wife. When the couple later decided they wanted a child together, they turned to a sperm donor — a decision they kept mostly private.
“Some family members know about his vasectomy. My SIL was not told about how we used a donor. Only our parents knew,” she wrote. “We wanted to leave it to our son whether or not he wanted the family to know.”
Later, she confided in her husband’s cousin for personal reasons. That’s when she found out her sister-in-law had already been talking.
“I ended up telling my husband’s cousin for reasons I’m not going to share, but that is when she dropped the bombshell… my SIL had told her BEFORE WE EVEN GAVE BIRTH. She was SHOCKED when I told her I never told SIL,” the woman said.
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When she asked her mother-in-law about it, she learned that her sister-in-law had indeed raised questions — and had been told to keep her opinions to herself.
“I asked my MIL and the SIL did ask about it but my MIL said to keep her mouth shut and her thoughts to herself,” she added.
Now, with Thanksgiving just days away, the woman says she is “livid” and struggling with how to handle the situation.
“I want to address it with SIL, and just ask why would she take it upon herself to spread our business, and how many people has she told, and why? Just why? But idk how to go about this,” she wrote.
“I’m still hormonal and I don’t want to make a complete ass of myself,” she added, noting that her mother-in-law feels terrible and that “they truly are the nicest family ever.”
Her husband told her he would support whatever she decided. Ultimately, she chose to send her sister-in-law a text message.
She shared the message in her Reddit post, explaining that she needed “to get this off of my chest” so she could “let it go.”
“Cousin told me you told her about our son. It hurts my feelings because A: you never came to us to ask about anything and B: it just isn’t something anyone should be talking about other than us, if we choose,” she wrote.
“Who else have you told? And please, just keep our family matters to yourself. Or come talk to us. I’d rather that than people talking and gossiping behind our backs.”
She went on to explain that their main concern is their child’s right to hear his own story directly from his parents.
“We will tell our son of course, but we wanted him to hear it from us, not through the grapevine. And our plan was to leave it to him if he wanted it out or not,” the message continued. “I don’t think you meant any ill will or bad intentions. But I’m struggling with letting it go. So I just needed to get it off my chest. I hope you have a good day.”
In the comments section, many Redditors sympathized with her frustration, though some argued that her husband should be the one confronting his family.
One commenter pointed out that the real problem may be broader than just the sister-in-law: “Seems like MIL is the person who doesn’t know how to keep her mouth shut. The secret is out so now what do you want to do about that? You can’t control other people so maybe don’t tell MIL secrets in the future.”
They suggested a calm but firm approach: “My advice … tell both MIL & SIL (privately) that you’re disappointed with their actions. Your story is not theirs to tell. In the future they should expect you to be very upset if they choose to tell others your story. Then move on. There’s not much more you can do.”
Another commenter was more direct: “Your husband should be confronting his family, not you.”