Sorry this is long. ADVICE please? 💔

Since I can't talk to anyone in my life about this... what do I do?

First of all, I'm a recovering drug addict. My husband met me in active addiction, and helped get me clean and I haven't used since October 1, 2017.

We got married Oct 2018.

We got pregnant March 2019. (11 weeks today)

During my early recovery, I had to spend 4 months in jail and 3 additional months in rehab. Throughout that time he was very supportive and wrote me daily, paid for expensive phone calls every day, even when money was tight and came to every visit in jail AND rehab.

When I got out (Aug 16, 2018) the plan was to move in right away and get married. We had waited long enough. We couldn't before because he has children and wouldn't let me be in their lives til I was clean for a length of time. The time was now! We were so excited!

So I got out that day in August; he picked me up and we had a magical weekend. I was finally formally introduced to his 9 year old twin daughters (only had spoken to them on the phone and facetime) and they INSTANTLY took to me. Everything was perfect.

Then like 2 weeks later I found out that during the time I'd been away, he'd had all these conversations with prostitutes on snapchat, and had slept with one. It broke my heart to think that the whole time I thought he was basically obsessed with me and I was the luckiest girl in the world, he was lying.

We got past it, and married anyway. But the problems didn't end there. I was always finding little remnants of things that were before I got home, and some communications since. Plus I found porn on his phone after I told him I wasn't okay with it.

During my time as a drug addict, I was a terrible partner. I lied, cheated, and blew him off. And he always holds that against me, and how it made him feel. But how much is enough for me? Now that I'm clean and a GREAT wife and stepmother.

But I love my husband. I love my little family. I love my home. I don't want to lose everything over him making another mistake, but it feels inevitable. I can only stand for so much, right?

Other then porn, the last incident involving an actual person was just last month. And he gets irritated that I don't trust him yet... I'm pregnant. He needs to respect me!

We were/are? more in love than any two people I've ever met and I wanted to stay strong in my commitment to him/the kids, but how much more should I let "slide"?