Boyfriend😔

I’m finding it hard to trust my boyfriend atm, we lost twins on my 18th birthday which was 17/03/17. He ended up cheating on me with his ex girlfriend and told me it’s cause losing them got to much I only found that out this month. I’m also 25+weeks pregnant with our rainbow baby. I feel broken and I’ve told him but he’s blaming me saying I pushed him away 😞