How to deal with hurt

Caught my bf with an open tab of porn on my phone.. we have sex regularly and he's always has his hands all over me so it's not lack of sex or anything like that.. I brought it up to him but I just can't get past the hurt that I'm feeling! I'm trying my best to deal with it but I just don't know if I can and I burst out in tears each time I try to talk to him.. it feels like betrayal especially that he's always been so reassuring that he has no need to watch porn and that I'm the only one he has eyes for and he can't even bring himself to look at another woman in that way.. I guess I'm being insecure because I'm 9mo pregnant and don't feel all that great about myself and my weight gain and he's looking at women with perfect bodies and women doing lesbian things.... It's not that he's unattracted to me either because he said that he loves my pregnancy curves and like I said always has his hands all over me.... How do I get past feeling this way? I just feel like any time we make love now he'll be thinking of the women that he's been searching and I honestly feel like shit about myself after finding all of this out and I feel ugly and fat and that he does not love me.. he's also been lying to me a lot and hanging with his friends all night till early morning and I literally was trying to talk to.him about how I feel and I couldn't help it but I started crying hysterically and he got mad and told me he's leaving and staying out all night and now.im just more upset and don't know what to do how do I deal with feeling like this towards him I love him and I'm just ultimately confused and I'm trying wrap my head around everything but my mind is thinking all of the worst possibilities