The clerics (not the Church), under penalty of mortal sin, prescribes how women can use birth control medications and other procedures and in some case have sex after they do so. The clerics feel that having sex when such measures are in play is offensive to God. They also believe that you can't have sex and preside over Mass the next day (hence the requirement of celibacy) and having a woman preside scares them because women are the cause of sexual impurity in their eyes. This is called misogyny and the vast majority of the laity reject it (and some) of us even have sex before coming to Mass).