I'm 7 weeks pregnant and my husband is a loving person. We've been married for nearly a year and a half. A month after we were married I browsed through his phone and saw him checking out other ladies on facebook including his ex. I confronted him and he apologised for what he did. 5 months after, I checked his phone again and he was still doing the same thing.. I'm not sure whether he talks to them or not.

Anyways, we had a chat and again he apologised. Since we found out we're pregnant, he's been caring but spends a lot of his time on the phone as well. He changed his pin, I guess maybe for no one to see his stuff and I'm not sure if I can trust him but I do love him. I do tell him not to hide anything from me because it will create problems between us and he promised hes not doing anything wrong. 

Am I overthinking?

Thanks