I know this is going to sound stupid but me and my fiancé did it everyday sometimes twice a day all of my fertile window and this week I haven't been feeling super weird. Feeling nauseous all the time, my left side is sore, my breast are sore, my stomach just feels upset all the time. My period isn't due til the end of the week. I was sure what it is or how early you can tell if you are pregnant or not.