Im 16 weeks pregnant and He broke up with me

Im currently 16 weeks pregnant and my boyfriend/baby's father broke up with me. Yesterday while i was sick and sleep (me and my daughter from a past relationship caught rsv) he went thru my phone. For the past couple months we were arguing because he forced me to stop being friends with my boy bestfriend whom ive known since i was 14. After weeks of bickering about it, i finally unfriended him on everything. I did lie and say i blocked him and told him we can't be friends anymore, when i really just stopped talking to him and deleted him off everything. So for that he thinks im liar. Then a couple days ago a guy that i "talked to" in the past reacted to my facebook post and he asked me why and i said he just wants attention. He seen that we used to talk and thinks im a liar because i didn't tell him that we talked before. Then he seen my messages with my first baby's father asking me if the baby im pregnant with now is his (its not). See, me and this new guy just started dating in September and i got pregnant on the first time and even though it was completely irresponsible we decided to keep the baby and raise it together. I had sex with my previous baby father a couple weeks before i actually met my new babys father, but he thinks i should have told him that i had sex with my ex (which i dont understand why i would tell him that in the first place, that's literally none of his business considering we hadn't even met yet). Then he's saying i sent pictures to someone in November which is a COMPLETE lie. I went thru my entire phone and couldnt even find what he was talking about BECAUSE IT DOESNT EXIST. I hadnt talked to or done anything with anyone since me and him have been together and ive been pregnant since September so why the hell would my fat pregnant ass be sending nudes lol but he's super convinced that im just a weirdo and liar and im hurt. I know all of this is childish and getting pregnant when u first meet someone is completely irresponsible. I feel regretful. Anyways, am i really that bogus? Was he completely justified in leaving? Snd What do i do now?? Raising another child alone breaks my entire heart. And plz if ur gonna leave judgemental responses please dont say anything. I know i shouldve been more responsible.