Periods and ovulation test.


My daughter is almost 1 years old. She is barley breast feeding now. We have decided to try for our next baby. I have not had a regular period in over a year. I had the nexaplanon in and I gotten it taken out 2 weeks ago. My question is should I wait for my first period to start testing or should I just take a ovulation test a day for a whole month to see when I’m fertile? I’m u sure of how to start again with no information on a period.