Help please!!

Joey Renee

I’m so confused!! I’m 14dpo ( got a positive opk) AF should come tomorrow. All my pregnancy tests have been a BFN so just for shits and giggles I took a opk test and it came back with a smile face!!! How??? Could I be pregnant and the tests just aren’t picking up the HCG? How do I get a positive opk when AF should show up tomorrow??