Having a hard time...

I'm currently 19 weeks pregnant. My ex of 7 years and I split. We have a son together, a month later I ended up pregnant with my boyfriend. I cried and cried and didn't want to be pregnant (I feel so selfish and wrong) I left my ex because I wasn't happy, but now I wish I could do anything to turn back time and have my family back.

My new Boyfriend is amazing but I just miss my ex so much.

I feel like I'm living life with so much regret and I find it hard to be happy about this new baby. I was put on antidepressants but it doesn't solve the ache that I have in my heart. I'm seeking advice. I feel like I gave up on the love of my life