Can one fall pregnant 4 days after her periods?

Hello. A woman can become pregnant any time throughout her reproductive years. Conceiving a baby during the time of your period is very unlikely because there simply isn't a egg in the correct position in which to be fertilized. A day before or a day after your period and you can conceive.

Sorry but the above statement is incorrect. The uterus releases one egg a month, the reason a woman goes into menses is to discard that egg. A woman can rarely release more than one egg a month but menses destroys any egg in the womb and gets rid of it through elimination in the period process. You are basically infertile 10 days from the last day of your period at which time around the 11-13 day a new egg is released and takes up occupation on the uterus wall. It is a myth that a woman can get pregnant at any time of her life, as it is also a myth that even a single sperm cell can impregnate a woman. It takes 50,000 sperm cells on average to have even a 50% chance of impregnation do to the hostile environment of the vagina. Less than that, less chance.