Trying for bb #2. No period...?

Trying to get pregnant with baby #2 for almost 9 months now. The last 3 months I haven’t had a period. Doctor did blood work pregnancy test and just recently got me on provera I’ve been done them for 4 days now last time I was out on this before baby 1 I started bleeding the day after the pills were done. This time still nothing. I’m scared. I’m worried. I’m sad. I cry a lot because I just want another baby I want our daughter to have a sibling I want to feel the joys of being pregnant again. I just feel so sad most the time, I’ve bought ovulation test tracked still just nothing, I’ve tried keto diet because I heard by a lot that it helps couples that are trying to conceive. I just I’m so sick of waiting.