Me and my boyfriend had sex everyday besides missing a few days here and there. We had sex on my peak day. I have been feeling odd. First my breast are sore for about a week now. I also had the most horrible back pain I have ever had a week after my peak day. My period suppose to be here in few days. Past few days I have been feeling nausus a little bit.The way I feel makes me feel like I am but unsure. Any advise?