Thank you for your query.
Firstly, with unprotected intercourse
, chances of pregnancy
always exist, but premenstrually, the possibility is very less, though not zero.
I would need to know the details of the medications she takes, as they can also definitely cause cramping and menstrual irregularities.
Anyways, she is close to her period, so it could be pre menstrual cramping.
Wait for her period, and if missed, take a HPT.