I had my period starting Dec.29th through ending Jan. 5th,I did have sex while on my period 3 times, we used the pullout method and Im on Birth control Today I feel cramping in my abdomen and low back. Yesterday when I wiped after urinating it was dark brown with some brown clots. Just tonight I wiped and it was a little bloody. Am I having my period again? I am on Birth control the pill called Monessa, I stopped taking it because it interfered with another medication I was on. But I did start taking it the beginning of December (last month) I also work out 5 days a week for 2 and a half hours, Im 23 yrs old. I have no clue what's going on with me, Am I having my period again? Am I spotting? Is my cycle changing? Please help... Thank you!