possible early pregnancy symptoms?

Autumn
Question for those more knowledgeable about pregnancy and the symptoms with them. Me and my fiancé had unprotected sex 5 days in a row after my period and we used no form of protection. Excuse me if this is to forward but he came in me multiple times within those 5 days. It's been about 3 1/2 weeks since then an my period is due in a week and a half. But within the last week or so I've had horrible nausea sometime in the morning or just from smelling food, I've had horrible cramping sensations but I'm not due for my period yet, I've been having to pee a lot and I can't seem to control my own bladder sometimes, and I've been having this extra my creamy white excretion . Trying to not get my hopes up yet.