Pregnant with his 2nd child and he doesn’t wanna see his son that he has now

My now ex who is the father of my son doesn’t wanna see my son because he has to see me. I have 8 weeks left until I give birth to our second son . He broke up and kicked me out and I went hang out with my friend who I dated for less than a month and after he found out he doesn’t wanna have nothing to do with me, he doesn’t wanna talk to me me. He thinks I had sex with him and stuff when I didn’t even hang out with him for no more than a hour! And when he tried to kiss me I wanted to leave I rejected him and I sent my ex the father of my kids a screenshot of the guy clearly saying that I didn’t even wanna kiss him . I never even brought my son around him my sister baby sat him. He’s been talking to his ex and even went give her closure. I was wrong for meeting up with that guy but I WAS single . All we did was talk about his car and what was wrong with mine and he has a son himself . I’m so stressed like I’m trying to work things out with him but he doesn’t even wanna see me. Or talk to me at all. Idk what to do anymore my heart is so broken. And to make matters worst I’m staying with my mom and siblings and her husband and they are giving me problems stressing me out more. I don’t know what to do anymore and I dontknow who to talk to. He won’t even let me come back to get the rest of my sons things and the rest of my stuff. I’m so miserable . Please. No rude comments because I really don’t care what you have to say. Has any one gone through the same thing as me? The father of your kids not wanting to see their child because they have to see you??😞 Also I no longer talk to the guy I blocked him on everything including my phone and we never had sex and what not like I have no contact with him after that night , and he knows that. He went and changed his Facebook password on me because I asked him why did he lied to me about him going to work at 9 tonight when he told a guy he was off. I feel like he has someone else and is doing it because he thinks I went and had sex with that guy and we never even had sex when we were dating. I’m just so broken stressed I don’t know what to do anymore