Advice needed I think I'm going crazy!

It's kind of a long story. But I'll make it quick. Okay me and my husband started dating in feb 2014 in August 2014 I had a miscarriage.. Well right before that happen my husband was sending his ex messages saying she's beautiful and will always be in love with her blah blah.. I saw it and he told me he didn't do. He eventually told me he did(which I knew) in 2015 we moved got our own place, I'm pregnant. Well I went to google something on his phone and I saw where he had searched "perfect pussy from behind" I never said anything bc when I tried to go back to it it was gone. Well then I use his phone again and he had searched two different chicks pussys(I'm sure porn stars) well I was pissed he said he didn't do it so I believed him. Meanwhile I have done had our dd and now I'm pregnant again well I had another mc. Not even a week later I went to google something and he had searched "Brianna frost"(porn star) I asked who's Brianna frost he said oh the rapper. He straighten lied to my face bc she is not a rapper. Well I'm upset bc this just don't keep happening. He told me some hacked his phone. So I believe him. Then I went to find some concert tickets so I go to his YouTube to his watched videos and find that he's been watching women strip and perfect asses and perfect tites he was looking up on YouTube. And he lied to me told me someone hacked his Google account! Not true bc I saw where it was his phone who watched it. He finally told me the truth. I'm 5'3 and 245lbs. I feel so unwanted how do I trust him or should I bc he's hurt me so bad