Trust issues

Hi guys,

Im not sure where to start. I am having really hard time trusting my husband, especially after he lied to me multiple times... he still has his ex on Facebook and she still follows him on Instagram. He gets really defensive when I want to know what’s going on. He says they don’t talk, but I don’t believe it, and the problem is that we have been doing long distance for the last two months and a half, so it’s hard for me to see things. He says that a lot of things will change when we’re in the same space. I am moving to his city which is across the country for me, to stay with the in laws, while we figure out a place to stay, as I am also pregnant. I am terrified to move just to find out that he still in contact with all his ex’s and it would be so hard for me to deal with it once I’m there, and pregnant ( very emotional) I don’t know what to do. Should I trust that things will get better and be patient, or should just back off now, and end it eventually.