I had sex 4 months ago... but i got periods after doing it till now without fail. This month its got delayed by 3 days and still am not getting my periods. There are signs of white discharge which is common for me every month. but it stops before a day of my periods. this month i havent get my periods and white discharge is not stopping. do we get pregnancy after 4 months? what is that am suffering from? is it due to weakness?