Im so confused and I am not sure if i’ll make sense but here it goes: After I tested my ovulation for 5 days... I noticed the 5th day the line was as dark as the control line. It also confirmed Glows ovulation prediction as it tested positive or line was dark close to the days I was suppose to ovulate. Well I am wondering if its possible to ovulate later than what it said? I did the BD 4 days leading to ovulation day and when stick had dark line. But I did not get BFP. I currently have my period again and it slightly changed the day of my period and now the ovulation predictor on Glow has also changed from the past month. Im wondering if this is the reason I tested negative.