Opk can detect pregnancy?

Je

I am four days late. I decided to take a test but I didn’t realize that I picked up a ovulation strip instead of hcg strip. Anyway, I plugged it into the premom app and detected the test was positive and high. I took a pregnancy this morning but it was negative/ looked a little faint but I think I was a Evap line. Do you think using a ovulation strip detects pregnancy? Do you think since it’s high I should BD? What’s your thoughts ?