i am 3 weeks late for my period. did UPT, the 1st one gave me blur result. to make sure, i make another test and it showed negative. then i started to take birth control pill. after that, i found that my right breast is leaking with milk when i pressed it. to make sure im not pregnant, i have done 5 more UPT on different days and the results are negatives. should i be worried about im being pregnant or not? or is it because the birth control pill makes my breast produce milk?