Anyone have odd cycles after a MC?

🐚Shimmering • Lucian was born 10/5/26 @ 1:29 am!
I had a MC on 4th of July, naturally. My period came late September. Then it skipped October and came November 2-7. I also had a laparoscopic appendectomy in August. Its December 8 and still no AF. Should I just give up and expect it to come in January or should I keep testing every few days to see if I get a faint positive? I've taken 4 tests, all negative as far as I can tell. Anyone else have jacked up AF? Did you get it fixed and how? If not, how does it effect your ovulation? What methods of TTC have you used that worked?