Period after miscarriage.

I found out I was pregnant in November but it resulted in a miscarriage. My period still hasn’t returned. I read online flax seeds can help your period return but it never did. I ended up going to the doctor for a yeast infection and UTI and I talked to her about my period never returning. She prescribed me progesterone that I took for a week and my period still didn’t come. I had to go back to the doctor because my UTI still didn’t go away and my period never came. She put me on more antibiotics and doubled my dose of progesterone. My period still hasn’t arrived!! Is this normal and is there anything I can do?? I just wanna get back on my cycle so I can start trying to convince again. It’s been 70 days since my miscarriage.