No AF

Kasey • Married to my best friend. I`m 21 from KY.
I have been trying to get pregnant for about 4 months since I had a miscarriage in October. I had a normal cycle in November. AF did not show in December or January. My blood test was neg. my dr won't give me any meds Untill I don't have AF in February. I really want to get my cycle on track before that. Any suggestions?