Please help!!! Partner has been visiting escort websites

i'm 24 weeks pregnant. When i found out i was pregnant i already had a lot of problems with my parner, we were actually having a big fight 2 days before i found out i was pregnant. Somehow he managed to convince me that he will do anything to work things out for us and our baby. after about 2 weeks he started againg with hos usual behaviour...going put drinking untilmorning altough he was saying he goes out just for 2 beers, no help with house chores altough i was visibly more tired than usual and i needed more help , playing his online phone game almost all day, hiding hos phone from me, momey problems again, i was spending all my money on us, nothing for me at all. I confronted him and he said im crazy and possesive and that he needs his freedom. I left and he didnt contacted me for 2 days. I decided im having an abortion and i left town for a few days. He got scared and started calling me texting me and my family saying he was wrong he should have behaved differently and that he would do anything for me to come back. We went together to the anotion clinic where he begged me not to do it, crying all the time. I cpuldnt bring myself to kill my baby so i left...with him...beliving everything he said. Again everything fine for about a month. Then again episodes like the one described earlier, not giving a shit about me...when he saw i got to the point to be to ipset and leave he would change his mood a little just enough to make me have second toughts. last week he started having his headaches again according to him to bad to go to work. He stayed at home 3 days while i was working and went doctors first day. He took the pills just the first day, afterwards he kept finding reasons to go out in the evening and drink after i came home from my late shift finishing at 22:00. House was a mess all 3 days he didnt do a thing...nothing to eat altough he knew i come home late. yesterday he went out for a reunion at 3 in the afternoon and came home at 4 in the morning so drunk that he collapsed on the bed. I took his phone and went trough it.i dont know why...just had a feeling. I checked google history. All 3 days he had visited dozens of escort sites...erotic massage places, all sorts!!!! I felt so sick!!!! Im a very sexual woman...never ever denied him sex...he was the one always saying i want too much sex, he needs a break!!!even pregnant i didnt make him feel unwanted or anything! I like to get myself sexy for him and for me...i dont understand why!!!! Why is he looking for sex somewhere else if he is not deprived of it at home??? i felt so sick!!! Did he aactually went to one one of these days?he lookd for taxi fares also so im thinking he went. i dont even want to think about him bringing one at home!!! Please help me!!! I dont know what to do!!! I feel so lost!!! I cant eat or sleep!!im afraid im harming my baby too!!!