Clear blue pregnancy test

Future mommie • 3 years ago dx with insulin resistance and pcos...I want nothing more than to be a mommie...experiencing pregnancy , pains n all! I'm now on fertility meds (letrozole) love to swap stories!
So if biology says the ovulation process is part of the pregnancy and it is actually what makes up thr first 2 weeks of pregnancy. ...how can the clear blue test show on a postive pregnancy test (1- 2weeks )? So can we all take one after ovulation and get a postive? ???