Cramps after sex?

Jessica
Has anyone, after sex, ever experienced severe cramping in their lower abdomen? My partner and I had sex last night and afterwards, I was in the most excruciating pain that it felt like I had to vomit. It's happened before but nowhere close to that extent. I couldn't even move out of the fetal position and it lasted for maybe an hour or so with severe pains and now it's just sort of sore and crampy with certain movements. Has this happened to anyone else or does anyone know what this could be?