So im a little stressed. Im on microgestin fe 1/20 im on day like 5 of the inactive pills on month 4... 2 days before the inactive pills i had cramps and some blood but it was pretty dark. Ive taken the pills perfectly, im not on antibiotics. But theres still no period. Mt friends mom said i could srill be preggo on birth control but with perfect use?? Should i be worried if i miss this period or were those 2 days my period.