How long does it live? I am on my 2nd cycle of Clomid and due to O on today and/or until 9/7. How long does sperm live or survive inside? Is it too late to start Robtussin? Cycle day 12? HELP!!
Sperm lives from 3 to 5 days in mucous that is not hostile. Ideally you should start the robitussin no less than 5 days before you ovulate adn continue thru ovulation.