Ob-Gyn questions? Ask a gynecologist online.
Cramping after sex is a well known problem.
However, it can be tough to confirm without a physical evaluation.
There could be many reasons for the same, including normal cramping without any specific cause, adhesions related to a displaced IUD, inflammation or infection of the reproductive tract, or even rarely an early pregnancy that has been missed.
I would recommend if the symptoms persist, or recur, you get yourself examined by a gynecologist,
If the cramp settles down, then this can probably wait till Monday,
I understand your anxiety, you need to wait a little longer and then take a call,
Take a tylenol in the meanwhile,
Do remember to accept if the reply was helpful,warm regards