Advice on OPK experience

Yomira

OPK strips came back positive the 19th & 20th so we BD both days and even the 21st when LH came back negative it’s now 9 DPO and I feel no symptoms😔

Do you think there is a chance It might just be too early?

Or has anyone actually gotten pregnant with catching your O day? This is the first month I started using OPK again after nothing for AUG & SEPT