Incidentally, I want to mention the choice of partners. A good man will be attentive to you before and during the act. If something hurts, he will probably notice and if not, tell him. A good man will stop
immediately if he hurts you. His goal should be to make sure you are completely comfortable and enjoying yourself.
I know there are guys that aren't like that and they should be taken out of the breeding population in my opinion.
As they say, nice guys come last ... just with different spelling.