If, in theory, I had had sex two days before my last period, but used the withdrawal method, and I then went on to have a period, could the sperm have taken a week to implant?
Because my next period is now 4 days late.
We have not had unprotected sex since then so just wondering if I could be pregnant? (and yes, I know I could take a test, but don't have one in the house so am just idly wondering if it is fairly unlikely or whether I should maybe buy one).