How long until a normal cycle?

Olivia • 22 🔹 Married May 2019 🔹 CLB 9/24/20 👧🏻🔹Baby #2 May 2022🔹

I stopped taking my birth control (Kariva) in the middle of a pack in the middle of December, I had my period in December at the time it was supposed to be. I tracked my ovulation through January and got positive ovulation tests. Now my period is 6 days late around the third day late I took a pregnancy test and it came back negative. Is it normal to skip a period? How long before everything is back to normal?