Anal sex and vaginal bleeding in pregnancy

Can anal sex cause vaginal bleeding? I know it sounds odd but I’m 6 weeks pregnant and the morning after anal sex I started spotting. (I’m too afraid to have vaginal sex right now) I know the cervix is full of blood vessels and can bleed easily during early pregnancy if disturbed. I’ve alerted my doctor but just curious if anyone else has experienced this. It’s been two days of spotting. Thanks.