Hey, i had a period the beginning of the month in March and then March 31, 2014. My period last 4 days and come on in the beginning of each month. I had unprotected sex on April 13, 2014. Yes, he ejaculated twice, the last time he did not pull out. I noticed I started cramping a couple days later that week after sex off n on til April 28 which is when i started bleeding ( i do not know if this is my period or not due to the fact I come on in the beginning of the month ). It was spotty and I only needed one pad all day, It was so scanty I thought I was done bleeding day 3. It was light red drops day 4 then brownish day 5 and 6 when I wiped and a little in my panties. My period for some reason was watery but now round my areola are getting darker and its noticable and changing . Could I be pregnant I did test April 27 and got a neg.with a cheap preg test. I also have had constipation a little and sore full heavy felling breast and i have gotten real dizzy