Provera after weaning

I weaned my son about 3 months ago. He was only nursing 2x a day (morning and night). Even though he slept through the night around 6 weeks, I never got a period and it still hasn’t returned. Before becoming pregnant with him, I was irregular, though I was able to conceive twice on my own (1 ended in a MC). I just went to the doctor for my annual and mentioned the absence of my period and my husband and I wanting another child soon. She suggested I start provera to bring on a period. Does anyone have any experience with it (or been through something similar)?