Losing friends

Ok here we go. So I'm in grade 12 and all through high school I've had two really good friends. They stuck with me when I was pregnant with my son and love coming over to see him and hangout with me. 

But now I'm pregnant again. (Again don't judge you don't know my situation) 

So anyway I feel like I'm not having fun hanging out with them anymore. My son is my whole life and all I talk about and they don't always want to hear about him all the time. And they always want to come over on a Friday and drink. Now (they don't know I'm pregnant yet) I have to make excuses to not have to drink. I just wish I had actual mom friends but I'm still in school so I can't. Ugh sorry 😐 I needed to rant