Confused ?

Hello momshies! I just really wanna ask you something and i hope may mkkasagot po ng problema ko. Bagong panganak po ako at 5months na yung baby ko and then I got my first period on feb 1 at hindi ako nkpag take agad ng pills but I am exclusively breastfeeding. And then supposed to be magkka mens na ako sa March 1. But nag take ako ng pills nung March 12 at nag bleeding ako parang menstruation sya tas nag PT ako and then negative naman. I dont know what to do guys ? Should i continue to take the pill or not? Help me pls.