What’s going on with my cycle?🤷🏼‍♀️🙄

My husband & I have been TTC since July. I got pregnant that month & unfortunately had a chemical. I had a normal period in August & September. I then missed 2 periods & my doctor gave me Provera to jump start my period in December. Based off Glow, I am now 5 days late for my January period (cd 34). All my tests are negative. I’m really not stressed out and I have not changed my diet or workout routine any.

-What can be messing up my cycle so bad? 🤷🏼‍♀️

-How long should I wait before I call my doctor again?