Hello, I have a question. My period is usually always right on time, either starting around the 27th. On the 20th and a few days before I had severe cramping on my left side, so bad I could barely walk. On the 21st there was a LITTLE light pink when i wiped, then the morning of the 22nd Nothing until later that night. It was bright red for the 23rd and ended on the 24th mid day. Usually my periods last about 6 days, this time it was only barely 3. Now my breasts are extremely sore to the touch, but ive taken a pregnancy test and its came out negative. I was just wondering if there was a chance I could be pregnant and when i should test again. THANK YOU!!!