My last period was august 28 & i have a 26 day cycle i had unprotected sex september 12 & he nuted in me now im cramping light will i get pregnant & how soon can i find out ?

The chemicals made by conception that turn a test positive are generally present at the time of a missed menses or 2 weeks after exposure. Testing too early can lead to a false negative test while a positive is usually accurate Cramping by itself is not a dependable symptom of anything.

If you do not wish to get pregnant, take Plan B within 72 hours of the episode of sex. The sooner the better. Get HPV and Covid vaccines. Wish you good health! Safe sex: https://www.hopkinsmedicine.org/health/wellness-and-prevention/safer-sex-guidelines