I think im pregnant????

I just took a home based pregnancy test called first response that comes with 2 in them. I took the test and it was one dark pink line and one light pink line on the instructions it says if its one line ur not pregnant but if it has 2 lines you are and that the 2nd line may b lighter then the first line. Well i'm over here wondering if i'm pregnant now!!!. I havent had my period for the mth of february and i jus got off birth control pills last mth sumtime b.c it had me constantly bleeding. I stopped taking my birth control one time b4 but i didnt end up missing my period at all in any mths they still were coming. So whats goin on???