ive been experiencing tender breasts, nausea headaches and feeling very tired for the past month, i was on the pill and started my new pack mar 1st but from mar 5th to the 14th i missed my pills the next day i started spotting that lasted for about 5 days but only spotted during the day. im not sure if it was a period or breakthrough bleeding from missing pills, my regular periods are very heavy, but since then ive had no more spotting. im still experiencing the tender breasts which is happening everyday now along with the nausea and fatigue. ive taken a pregnancy test 2 days ago and it was negative i was just wondering if i could very well be pregnant or if it might be something else thats causing these symptoms?