I am on the pill Loestrin 30. I take a pill every day for 3weeks then have 7 days off for my period. Usually, I come on 3days after taking my last pill. However, this month I forgot to take my pill twice on seperate occasions and had intercourse during this time, and didn't use a condom. Now, it is a week after I took my last pill and I still haven't come on. My breasts were sore at the start of the week, however this is dying down, but i am constantly having mood swings and have a bloated belly and some belly aches today (a week after taking my last pill) However, I am also in the last week of my exams - could this be stress or could I be pregnant?