I'm a bit confused and worried about something that's been happening during sex with my wife. After intercourse, I notice this thread-like sticky substance coming from my penis, and I'm trying to figure out if it's sperm or just precum because my pen...
Based on your description, it sounds like ejaculation occurred, as the sticky thread-like fluid coming from your penis likely contains both sperm and seminal fluid. Precum typically appears before ejaculation and may not always contain sperm, but during ejaculation, sperm is released. If you have concerns about fertility or reproductive health, it's best to consult a doctor for evaluation.