Hi all I’ll try and keep this as short as I can. I came off pill in June and have had regular periods since average 25/26 days. My period started on 6th October with very light spotting then was the heaviest I have ever had for 5 days. I finished on the 10th and my fertile window wasn’t until 15 according to the app. I didn’t start having sex until 17th and then every day to end of fertile window. I have been testing with ovulation strips since then and nothing has shown as positive and now my fertile window has ended. Is is possible for my fertile window have been straight after my period and therefore missed out by not having sex between the 10th and 17th October (cycle day 6-11) I’m so confused right now