Hello,
Welcome to the ehealthforum and I am really glad to help you out.
If you had unprotected sexual intercourse, the possibility of pregnancy canât be ruled out.
However, the presence of belly button pain is not a definite sign of pregnancy. For the confirmation of pregnancy, Iâll suggest doing a serum beta HCG test.
This is a very sensitive test for the confirmation of pregnancy.
You can wait for your periods and in case, you miss them, this will further confirm the presence of pregnancy. I sincerely hope that helps. Take care.