TTC newbie

Shay
I am a newbie to this app and a TTC newbie. I am recently married and my husband and I agreed to stop the pill in December since I have been on it for about 9 years.  That month my cycle was strange it was about 41 days. On Jan 6 AF came for about 5 days.  I have been trying to figure out my cycle and in the app I put 28 days. I am currently on day 45, and last Thursday I took a test. It was negative. I am so confused and starting to get nervous that it will be hard for me to figure out when I ovulate. Anyone else have long cycles after stopping the pill?