weird vagina swelling?!

Okay so this might be a little tmi. So me and my partner tried anal today and then had vaginal intercourse after (brand new condom, maybe a minute of anal) now there is a weird sort of hard thing inside my vagina. I thought it was my cervix since it swells during sex but I don't think it is and just want to know if it's normal. I can't recall if it's always been there but it felt very new and swollen after. Not really any pain, sort of numb to the touch. The swelling has gone down quite a bit and is still sort of tender. No blood so.