After having unprotected sex during my fertile times about a week after I started my period- although 2 days earlier than anticipated , this wasn't anything unusual for my period to come early. My husband and I were trying to conceive ,but as soon as my period started I of course knew I wasn't. We already have one child, and I am aware of implantation bleeding- this wasn't. Or at least I don't think. It was heavier than implantation bleeding , yet lighter than my usual heavy period, and it was also much shorter. I am normally a 7 day gal, my period was wrapped up in about 4-5 days. Again I chalked it up to being just an odd period. However during the whole time I was on my cycle I was sick to my stomach, something that's NEVER happened before. Really as soon as my period stopped , my symptoms subsided. Now I haven't had sex since my last period, and was expecting my period on the 19th of this month, yes only yesterday- but my period is NEVER late, if anything it's always early, And I also took numerous pregnancy test, just because my body seemed to be telling me to. This isn't all in my head, but I am getting very confused as to what could be going on. This whole month I have been under the impression that since I had my period last month there was NO way I could be pregnant, but I've had terrible hip and back pain, headaches (never get them), gained weight- but my eating habits haven't been the best, and I am very tired, however I am stay at home mom of a toddler so... I am sure my period will be here soon, as I have various symptoms of PMS, is it possible to have symptoms of PMS and not get your period , AND not be pregnant. I am sooo confused right now.