Cracking back while pregnant

So I’m about 11 weeks pregnant. Since i can remember i always crack my back both side and it’s all of my spine. I love to do it. Today I did it & my stomach started to hurt so bad. I never thought it would hurt my baby until today. (Maybe cause I still don’t feel pregnant) but I was wondering if that’s okay? Could it still hurt my baby? I don’t want anything to hurt my baby