Recovery

I was cheated on by my partner of 7 years it started 2 years ago I forgave thought we were workin on it come to find out they never stopped seeing eachother. How do I recover from this? I'm afraid to move on. We did everything together like normal but she's a Jehovah's Witness which explains why she didn't care about holidays and such. 
Very sneaky we still went out like normal we lived together talked about future plans. I got pregnant lose our son 2 trimester got right back pregnant.