OPK as Pregnancy test?

Amanda

Sooo... I bought a box of OPK tests to track ovulation this month and am AF on 11/11- I read that you can use them as a pregnancy test also, I used one today and I was BFN 😞 hoping it's just early - will be testing on 11/12 with a real test ! Anyone else using their extra OPK tests hoping for a positive ?