What time is it in Luanda right now? Check Luanda, Angola exact official time and time change dates. Current local time in Luanda
Posts: 2,427. Hi there, OPK detects LH Surge, which in most cases occurs 12-36 hours BEFORE ovulation....if you got your OPK at 8.45 am yesterday morning, you could expect to ovulate anywhere between yesterday evening to tonight!
Many couples rely on ovulation predictor kits, or OPKs, to identify when the woman is most fertile. An OPK can detect a surge in the production of luteinizing hormone (LH), which occurs roughly 36 hours before ovulation.vulation prediction kits do not monitor cervical mucus. 3. Ovulation prediction kits don't work when certain fertility drugs are present in the system. OPKs do not function reliably when injectable fertility drugs such as Pergonal or the hormone hCG (e.g., Profasi) are present in the system.