Very very short fertile window

So my cycle is usually 28 days, and this month was the first month I tracked my ovulation by using tests, and checking my cervix. Luckily I did because the glow app was several days wrong with regards to my ovulation day. Glad I have updated the app with more info, and happy that it updates the forecast too. But I also notice that my ovulation window is very short. Here are my tests from yesterday, which was almost positive, to today same time, a negative. Luckily hubben and I did the deed last night, but maybe we missed the window. Still glad to learn more about my body. And still hoping for my BfP in 2 weeks!