Longer Cycle with More frequent Intercourse?

[stasiastar.livejournal.com]

Hey everyone :O). I've noticed that when my husband and I have sex more frequently, my cycles tend to be longer. Sometimes I even spot for a couple of days on days 20-22, and then my period won't come until day 32 or even day 35. Before I was sexually active my period was very regular. I don't like it because I worry that I might be pregnant when it's so late! Does this happen to anyone else, and does anyone know why? I am not on the pill and we use the Calender Method and condoms.