Anal sex while pregnant??

So hubby and I got a little carried away last night and he wanted to try something new so we did anal. As I was sitting cleaning myself up afterwards, I was reading and it said anal is not really safe in pregnancy especially if you have a low lying placenta, which is what I have :( so now I’m freaking out. My OB said I have no restrictions with my placenta but idk If that considered anal 😅😅. Anyone else done anal and everything be ok?