12 weeks pp I had a chemical pregnancy

I found out last week I had a chemical pregnancy. I am not going to lie I don't want another baby so I am not upset it happened. I knew I was pregnant I couldn't stand certain smells again and I was feeling sick and tired. The worst thing is we used condoms. I had a awful pregnancy awful birth and the recovery was also horrible. I have three beautiful healthy children I am grateful to God for my beautiful children. It's strange when I desperately want to become pregnant it takes me for ever to conceive and when I don't want anymore I became pregnant.