I switched from ovral (ethinyl estradiol and norgestrel) g to microgestin 1.5/30-21this month. started cramping yesterday. no blood just vag mucus is muddy! am i pregnant?

Probably not: As long as no days passed in between, you had no diarrhea nor were on antibiotics there is a 1% chance for pregnancy. If you are worried do a pregnancy test ( probably negative). Breaktroughbleeding when you change birthcontrol is normal. Continue your pills and see. If the bleeding does not stop in 10 days see your ob/gyn for an ultrasound.