> Does your fertile window calculation account for the fact that sperm can live for 5 days? Yep. But a caveat is that sperm can ONLY live for 5 days during the

> Does your fertile window calculation account for the fact that sperm can live for 5 days? Yep. But a caveat is that sperm can ONLY live for 5 days during the fertile window when fertile cervical fluid is present. > The main problem I have with the symptothermal method is that it means the woman only has sex when she least wants to, i.e. outside the fertile window. Well, if a woman is on the pill, she is ALWAYS outside the fertile window i.e. has a depressed libido.