Had sex on the 17th of December, unprotected. My nipples were very swollen and tender. But now not as much. Then I was a couple of days late. And it is a lot lighter than usual. Then I had this weird craving, I ate a ritz cracker with can cheese on it, a small sweet pickle and a sweet cherry you get from a jar(ate 5 or 6). It was like I couldnt find anything that would feel me until I ate those. And I have been sick to my stomach(haven't thrown up), I can smell really good and a lot of smell make me quezzy. also have had headaches randomly. May I get some help please.