Off Birth Control & ~50 day cycles

I’m in early 30s and been off the pill since December. Was on it for 9 years prior. Now TTC but cycles are like 48+ days apart. Went to the GYN 2 weeks ago, had bloodwork done, follow up scheduled this week for ultrasound. Have taken 4 pregnancy tests, all negative, but I’m currently on day 55 of cycle...Anyone else ever experienced something like this? Planning to try ovulation sticks and temp monitoring next month once I can start the cycle tracking from day one again, but curious if anyone else had a longer detox period with longer cycles once they went off the pill. Thx