Tw is this SA of some sort?

My ex seemed like a great guy. He had a good job, seemed to be fairly sensible. I knew him for about two years. I felt safe with him.

My son was about 4 at the time. He is autistic, and he still gets scared at night and will sneak into bed with me. I tried locking my bedroom door once, and he screamed in terror until I let him in. I don’t really mind as I am on the spectrum too and I slept in my parents bed until I was about 6 or 7. I know I felt safer near my parents so, I didn’t see an issue and plus he was clearly scared.

Well, my ex and I had alone time and I got pregnant. He immediately said I had to move in, and I thought it seemed like a great idea. Plus, he seemed like a great guy.

Until my son crawled into bed. I was asleep. Then all of a sudden I wake up to my ex trying to have sex with me. I told him to stop and he did.

A few days later it happened again. I told him to stop, and let me take him in the other room. I struggled to pick my son up and then put him on the couch.

I told him I wasn’t comfortable with him doing that with my son in there. And later HE messaged me saying “I’m not comfortable doing that with him in the bed.” I said “yeah, didn’t help he was rolling over.” *I was regarding that to when I was picking him up to put him in the living room. I tried to pick him up and he rolled over and me being pregnant, plus his weight (50lbs) made it difficult.

But then a few days go by, and it happened again. This time I’m mad. I know he knew my child was in there. I scooted away at first as I was half asleep, and my ex started making these whining baby noises. It made me sick to my stomach. I picked my son up, and from then on, I started sleeping in the living room.

I eventually made an escape plan, as other things were also going on, but this was one of the things that bothered me the most considering I had a baby on the way and my son could have woke up or anything. Maybe I’m overreacting, but my gut feeling is saying it was wrong of him to do that, and the baby whimpering my ex did when I scooted away, just made me sick.

My baby is now 7 months, and recently my ex decided to reach out. I feel very sick thinking about it, but I do not feel comfortable with him around a baby. I never left my child alone with him, other than running inside a gas station to pay for gas or grab a drink from inside.

I am worried he is going to try to get some kind of custody rights. And I’m terrified of him being alone with the baby. He keeps messaging me, saying he’s not threatening me, but wants to be involved and that I don’t want the courts involved, and almost even convinced me to work things out with him, but I still feel sick thinking he tried to do that and what worse things he might do alone.

Am I overreacting? My mom said I shouldn’t bring it up to a lawyer because my response could be taken the wrong way, and now looking at it the way she explained it, I see that she may be right. I don’t know what to do, but I want him to keep away from my kids. Or at most supervised visits.