Trying to Conceive15 views

Ovulation tests detect the luteinizing hormone (LH) surge, which usually appears 24 to 48 hours before ovulation. A persistent strong positive may be due to: 1. a longer LH surge, which can last more than 48 hours in some women; 2. polycystic ovary syndrome (PCOS), which can cause elevated baseline LH; 3. incorrect use or expired test strips; 4. recent use of hCG-containing medication, such as ovulation trigger injections, which may interfere with results. A persistent strong positive does not necessarily mean ovulation has occurred. Consider combining testing with basal body temperature tracking or ultrasound follicle monitoring. If this happens repeatedly, consult a reproductive medicine specialist.