Long shot

Tessa

This might be a long shot, but has anyone had something similar:

I am nursing at 19 months pp. I got my first period and positive ovulation last month. It says this is my fertile window with ovulation in 2 days, but my opks have no signs. They are not dark at all and don’t look like they will be. I know I have 2 days still about so I will continue to test to see.. has anyone had this due to nursing? Like skipping ovulation one month?