Can opk detect pregnancy 1 week after ovulation?

No, ovulation prediction kits (OPKs) cannot detect pregnancy one week after ovulation. OPKs are designed to predict ovulation by detecting a surge in luteinizing hormone (LH), which typically occurs 12-48 hours before ovulation. They cannot detect the presence of human chorionic gonadotropin (hCG), the hormone produced during pregnancy. Early pregnancy tests, which can detect hCG, are available and can be used to test for pregnancy as early as 10-14 days after ovulation.