 [ Symptoms ] how many days after having unprotected sex can sperm stay in your vagina not sure when i got pregnant my last lmp was 1013 cycle was about 28 days i had unprotected sex on 1017 1024 what day might i have gotten pregnant i am confused please help [ Disease ] the action that is needed is to find the reason for the temperature elevation fever does not necessarily need to be treated but the cause or reason for the fever may require medical intervention