Recently had sexual intercourse with my fiancé without birth control. We took the 'Take Action' emergency contraceptive pill well within 48 hours. Approx. 5 days later I began to have light vaginal bleeding for 3 days. It is now week 4 since intercourse, I am 1 day late on my period and FOR 1 week been experiencing mood swings, nausea w/ out vomiting, extreme loss of appetite, and minor depression & STRESS. In the last 4 weeks I have had 5 negative pregnancy tests. Worth going to see Dr.?