Hi, Welcome to the board
I am sorry for your loss
I didn't O until my second complete cycle. Try testing starting on day 8 or 9 and make sure you test in the afternoon or at night. It took me a week of testing to figure out when I Oed. Now I just plan on Baby making on days 10,11,12,13,14,15,16,17,18.....LOL I know how frustrating it is. Took us 4 years to get one BFP and my baby died less than two weeks before the second trimester. GRRR I hope it doesn't take 4 years again!