Sorry I posted in the OPK group but I hardly ever get a response. This is my first cycle using opks. Last night I used my first one at 9pm and it was super faint, this morning about 10/10:30 I tested and got s pretty decent line well I tested again tonight at 7 and it’s going faint again?!? What does that mean? I got excited this morning when I saw it get pretty dark and now I’m just confused. According to the app (yes I know it’s an estimate) it estimates my ovulation to be tomorrow.