Late positive OPK turning into BFP

Can I hear people’s positive stories about getting late positive opk and it turning into a bfp pregnancy test?

I have irregular periods between 28-49 days ultrasounds is normal and currently waiting for an appointment to see gynaecologist. We’ve been TTC since October which isn’t long I know and I’ve been off the pill since December 2022, I also have a nearly 3 year old who was conceived first month of trying not that this makes any odds this is the first month tracking ovulation and I’m on CD 16 and opk line not getting any darker will insert picture below.