Checked on boyfriends messages just be curious

So he cheated on me in the beginning of our relationship and I forgive but the only way I found out was because I searched through his phone and he had slept with two hookers online. So after almost a year I randomly searched through his phone. And surprise surprise he's been texting other girls, AND he's been messing hookers just like before! He's getting the girls from backpage asking for quickies. Like it was about 2-3 months ago the last time he's messaged them. So I should I say anything ? Yes I've invaded his privacy but dammmnnnn I really feel like he doesn't love me. I'm 38+4 weeks pregnant and I really just feel like up and leaving him... like not tell him anything just leave. I don't like beginning second choice to ANYBODY!!! And now we have a fucking daughter on the way? Like what?!!!