Sheikh Ahmad Kutty, a senior lecturer and Islamic scholar at the Islamic Institute of Toronto,Ontario, Canada, states: There is no hard and fast rule in this. we are best advised to consult a medical practitioner in this matter if there are any concerns in this matter; otherwise, it is simply a natural thing that does not involve any complications at all.
What matters in Shari`ah is that the spouses approach each other gently with a prayer; they should pray two rak`ahs and engage in foreplay without rushing into sexual act.