he cheated 😞 38wks pregnant

long post sorry....i am 38wks pregnant with a babygirl. me and my baby daddy go way back and we’re on and off before i got pregnant. in the beginning when i found out i was pregnant he wanted me to have an abortion but i couldn’t and said fuck him, we didn’t talk for months until around november-december. We both agreed to try to make our eel work for our soon to be daughter. Mind you i love this man with all of my heart and ofc i’m leaving our main details but you get the idea of the back story. since we’ve been “trying” i’ve found him on multiple occasions texting/sexting/snap chatting/instagramming over females. each time he promised it wouldn’t happen again and i believed it 😌. well for the last couple months i thought we would finally be okay but i had a gut feeling something was up. well yesterday i went through his phone (yes stupid i know) knowing i was going to find something and i did. A couple days before valentine’s day, he invited some girl over and slept with her. (wow i cried writing this part) i’m so deeply hurt and i cried so much to him and he promised me that he never wanted to hurt me again and that he keeps making mistakes but he’s done now. i feel so ugly and worthless and not good enough and the only reason i’ve held on to him so long is because of this baby. i wanted a happy family and he ruined it. idek what to do anymore or how to feel and me being pregnant doesn’t help at all because it clouds my judgement. anyway thanks for reading, if you have some advice please help a sad mama out 😞.