metformin

Lexi • ttc#1👶💕 / pcos / metformin 1700 mg
its about to be 2 weeks on metformin and AF hasnt came yet.. was cramping maybe 5-6 days in, my hips were aching a few nights ago and now all i feel is a little lightheaded here and therr and im super sleepy all day.. should i continue taking it alone or make an appt to try the provera/clomid method already? i need advice!!