Hello i want to ask for my mother its so important ! :(

you dont say how old you are but the basics are this. every month a woman produces an egg from her felopian tubs. that egg then flows down until it reaches the curvix where this thickens ready to receve the egg, (if she has had sex ) this acts like a home where the egg attatches itself to the sides and then bacomes a baby. NOW if she dosnt have sex and the egg dosnt get fertilised then the thickening of the cervix isnt needed and the body get rid of it. this will keep happening until eather she gets pregnent or she goes through her menoporse.

hope that helps, take care