He left

Im 22 and 36w5d pregnant and I really don't know how to feel right now but I think it's for the best . We've been together for 3 years next month but lately I've noticed him being distant . When I first discovered I was pregnant he was a dream but as I progressed I noticed he became distant and I had a gut feeling he was cheating . We shared a phone because he broke his out of anger a few months earlier so I noticed he was signed into messenger and what I found had me sick to my stomach . He had been cheating on Facebook,Badoo,POF, Tinder,and a site called Ebony Chat where he had photos of his penis on the site. I was sick but he confessed and said he became addicted to porn and he would delete everything .

Fast forward to last night, he left his messenger opened and I saw where he was conversating with three different woman complimenting them so I pulled him to the side and we agreed on a split but would try to live together until after baby 6 weeks was up since we just put all our money into an apartment but today he gets mad and demands I take him to his grandma's house . When we pull into her yard he wants to explain and talk but I wasn't hearing it . I didn't cry or show any weakness . My main focus is my daughter . As I drove away I felt a power come over me . I think I can do this