How do I respond?

My friend is talking about me having two kids with two different men. The first man I was with was a cheater and very abusive. There’s no way I was going to stay with him.

I also don’t think that I can’t have more kids with another man because the first didn’t work out. My second baby was completely unplanned and my “friend” knows that. Fortunately this guy (baby’s father) is amazing and treats my whole family wonderful. I could not ask for a better bf. He loves me to death, our son and my son from my previously relationship. It’s a nice feeling after being cheated on and abused for 10 years, I could just cry.

But how do I respond to this? He may have been joking but I don’t see this as a joking matter. I’m just pissed.

Please delete if in wrong from, I wasn’t sure which was most appropriate.