First round of Femera - ovulation bleeding?! TMI

Fa

I want to know if this has happened to someone else. Been TTC for over a year. First found of femera this month. Had a positive opk on CD 15. (First time ever!! Usually between CD 21-27...) On CD 17 I had pink blood when I whipped and on CD 18 had the same thing with brown blood this time. The amount was really small both times. Any input??