What am I doing wrong..?

Hi everyone! New to this app & my husband and I are newly TTC! Started in July without using products (ovulation tests). After I received my period in July (16th-20th) I began using ovulation tests immediately 2-3x a day, waiting at least 4 hours in between each test. I’ve never seriously tracked anything so I’m still at this point mostly unaware of how long my cycle actually is, but i believe I have a 29 day cycle. I’ve done some research and typically ovulation happens around day 15 for a 29 day cycle. I’m now at day 16 and still no STRONG positive! What I think is a positive my husband says is not. Maybe I am doing something wrong? I’m also very paranoid that maybe the ovulation tests I bought online is just a bad batch?

I believe I’m convincing myself this is a positive because I feel like it should have happened by now😩 any tips/tricks would be greatly appreciated!