Losing the love of my life.

We had a perfect relationship for two and a half years, had one daughter and now I'm pregnant again with twins. He had been going out for rides nightly because his anxiety and depression had started acting up. I was understanding until he was only spending like two hours at home. I started fighting with him, went through his phone which led to a fight(found sketchy stuff but no definitive proof). Because he used to be in a controlling relationship this bothered him a lot so I ended up being the one to continuously apologize.(I know it was wrong) Since then I've suspected cheating for multiple reasons and dealt with him being rude to me and also not knowing if he wants to be with me. Recently he said he didn't know if he loved me in an argument and is trying to decide if he wants to continue. I've dealt with a lot during this rough patch of ours. A lot of neglect and a lot of him just being mean. I'm about to be a 22 year old mother with three children under the age of two. You guys are always so supportive and idk I just need to hear peoples thoughts on everything. Can I do this? Because I'm starting to feel as though I can't.