Please help me where I don’t know where I went wrong here and it’s driving me nuts.

Last cycle I started testing from cycle day 11 till I hit my peak on the 23rd (A.m) and I even kept testing to see progression for that test line to fade out. I babydanced for 3 days. One day before I saw the peak , during the peak and the fade out of the test line. So, I Got Af today on time. I was so bummed. Even used preseed for the first time. Guess it didn’t work in my case. This would be my 2nd pregnancy as I have a child whose 2.5 years old. I’m a healthy woman. Just got blood work recently. Everything ok. Taking multivitamin daily for women everyday. Just so bummed how I did not end up getting pregnant I really thought it would be it 🙁