Dealing with infidelity while pregnant

So am married for 10 yrs almost and have a 5 yr old son and currently 5 months pregnant. For the last couple of yrs my marriage has been on rocky roads. Long story short my husband and I have both been dealing wit issues between us in our relationship. He wants me to be submissive obedient and I just want to feel secure and trust him in our marriage. Sadly I can't because of encounters I had wit him. Anyways he's a great father and is always there but he feels like he wants to have his cake and eat it too. Like have a family but enjoy other woman on the side. For me that's not acceptable. I just found out he is intimate wit a woman he promised he won't have any contact wit anymore. He blames me for him doing what he does. He also thinks a male friend I had before was having an fair with me so he did his thing too. We both want the marriage to work but I don't know what to do now???? Ps am highly confused as to Wat to do next....