Is this normal for a man? Need advice.

So I’m 39 weeks pregnant and a little emotional at times. A couple months ago I caught my SO texting some chick he used to know. He has since stopped all contact with her. I got mosey am went through his I watch while he was at work and just browsed old conversations. During the time he was texting that chick he was having conversations with his sister about how we would be out and about and he would check out others girls or how he wished more girls were in his college class so he had nice things to look at here and there. Along the lines of the conversations he mentioned how 9 months is a long time. I just feel so disrespected. Here I am carrying OUR 2nd child together, 3rd if you count my miscarriage and he his worried about having nice things to look at. His watch hasn’t synced to his phone since the end of September when he stopped wearing it after I caught him texting that chick and now I’m curious as to what other conversations he has been having. He even text me from work and told me to get out of his watch. Apparently it sends a notification to him. But I wonder now if I should have even opened up this wound. Him talking like that about other women just makes my self esteem almost non existent. I’m ready to pop, I feel huge and now I feel even more unattractive. I seriously can not wait to get my body back!