Ovulation pending?

Margarita

Cd17 According to the app i should be in my fertile window but the ovulation test has only a very faint line, this is my first month of testing for ovulation so I don't know what I am doing.. but I feel like the line should be much darker by now, it looked the same on cd15 as well, the previous month's i felt that I was ovulating according to the symposium i was feeling but I am starting to doubt the my self now..