Cramping after intercourse?

Charity
Anyone else have any cramping that lasts all day? Today is my first experience with this, and has me stressed and worried to where I'm making myself sick. It woke me up from my sleep and hasn't stopped since... Called my dr and said as long as no spotting not to worry. But I'm still worried! Had intercourse last night and now questioning if it's worth the scares/pain. Please tell me I'm not the only one?!?!