Ok, my periods have become irregular after december 2006 ( they used to be 32 days). They have been ranging from 30 days, 26 days, and 28 days in that order. There is no reason as to why, it just happend. Anyway, my last period was march 22 and I have reason to believe I ovulated this past week, the 3 or 4, not sure which, just had symptoms like cramping and being really wet. I had unprotected sex on the 30th of march and 2nd of this month . Chances of becoming pregnant? and when would symptoms start to set in?