My bf of 2 yrs and I love having sex and in various positions. However recently, I have been experiencing a somewhat stinging pain while having sex. This has not happened previously. There is no pain when i urinate nor does it hurt while we do the missionary position. However, its does sting when we try the double thrust and doggy style. Is this common if one has sex on the last day or the day after the period has ended? Please advise.