I really don't see how it could but you never . Try looking it up on an official site with real info.
Make sure you use lube and go slow! Listen to your body and go at the pace it is comfortable for you. It is even safer if you use a condom. It is safe.
I asked my doctor and he said it was ok.
Great . Only thing now is I can't use the bathroom. Smh . But thanks
Anal sex during pregnancy can cause placenta previa.