My Fiance Is Leaving Me , Cause I Let Out My Painful And Biggest Secrets To Him

am feeling so devastated right now , my fiance is leaving me , cause I open up to him , that I once had an abortion .
my fiance and I already meet with our parents , he asked of my hands in marriage, and I accepts , we have been to our parents house , but there's an issue in my side , my father don't was not really good with it , cause of cultural differences, but later agreed we can go ahead with it , so my fiance tells me I need to get pregnant , so that we will do the marriage , I agree to that , but it isn't forthcoming , so I started remembering my past , when I had an abortion , so I opened up to him cause of the love we and trust I shared with him , I have carried out possible best, I am okay but some hormonal challenges , after a month he text me , that he's no more interested in the relationship , i am full of regrets right now , I don't know what to do