your cycle could be off from taking the birth control atleast it always messed with mine. but as far as being pregnant its far to early to tell if you had sex on the 16 and 18th best you can is wait until 2 more weeks atleast to take a at home pregnany test. who know you may even get your period again around the 3rd on Jan. birth control can mess your whole cycle up lol
So do you think this bleeding is my cycle or some break thru bleeding? Do you think there is a possibility of pregnancy?
see if you can go to a doctor and get blood work blood work is the best way to tell if you are preg. or not