I am now 7 days late on my period. I've had mild cramping and white milky discharge for a week now, tender breasts for 2 weeks, a bad headache today, I got nauseous twice in the past few days for no reason. I even had sex after being late to see if that would bring it on like it usually does but it didnt. I'm not sure if I could possibly be pregnant or if I'm just late. I've been tracking my cycle for 4 years now and for the past 1 1/2 years I've never had a cycle over 27 days. Before that it ranged from 24-29 days. I had 1 cycle of 32 days 2 1/2 years ago and I'm currently on day 32 now. Could i possibly be pregnant? Or is it most likely just stress or some other reason.