I usually have iregular periods , and I been feeling as if I'm pregnant but not sure , last month had unprotcted sex but I recived my period but it was a little odd I normally have heavy periods a lot of cramping were I'm in so much pain but I didn't get any symthom at all and it was light and lasted 3 days when normally 6. Had unprotcted sex 5 times this month ( November ) but still received my period but too early (11) normally (22) but I been having fatigue , change in foods , headaches , nauseus but I don't throw up , little dizzy , and cramping around my lower abdomen , me and my boyfriend have been trying to conceive for about 6months now SO CONFUSED please help , gladly appreciated