12weeks and alone

So my boyfriend broke up with me and I honestly don’t know y....I’m 12weeks pregnant with our 2nd baby together and taking care of our 4month old.....Saturday I went to the hospital at 8 and didn’t get out til 1am and I had 2 of my older kids with me including baby so I’m dealing with them while trying to get seen...he told me let him know when I got there and I did and I even left my key outside for him thinking he would’ve been here when I got home but obviously he wasn’t so he text me at like 11 but I was sleep and I didn’t get up til noon and I texted back...I even said to him thought u was coming last night and he said he went to sleep...recently he texted and basically broke up with me and now I’m here taking care of 3 of my kids from previous relationship and me and his 4month old while sitting here pregnant with another....I just don’t know what to do and I feel like a bad parent cause I don’t want this baby I wish I had got the money up for a abortion...smh I’m just frustrated and tired!! I cant seem to get a good man for nothing!!! I’m so hurt right now it just don’t make no sense!!!