My partner is leaving me & our unborn baby with DS

We already have four kids (4, 8, 10, and 15), and at 34 and 36, we’re not exactly young parents anymore. When we found out our baby boy has Down syndrome, my partner wanted an abortion. I just couldn’t go through with it. He respected my decision and has been supportive—until now.

With just a month left until our baby arrives, he’s decided to leave. He wants 50/50 custody of our four older kids, which I’m fine with. But when I asked about the baby, he said he wants no contact with him at all.

I’m heartbroken. My daughters, especially my 15-year-old, are really struggling with this. She doesn’t talk about it much, but I can tell it’s weighing on her. The younger ones are excited about their baby brother, and I know they’ll love him—but how do I explain that their dad just… walked away?

I’m determined to give my son a happy life, but I can’t help but worry about the future. How will he feel watching his siblings get picked up by a dad who wants nothing to do with him?

Has anyone else been through this? Any advice—good or bad—is welcome. ❤️