The first day of the menstrual cycle is the first day of menstruation. Menstruation occurs because no fertilized egg implanted in the uterus during the
Tag: Female friends
Female friends, do you know what the symptoms of infertility are?
What are the symptoms of female infertility (1) Menstrual disorders:The first is changes in the menstrual cycle: early or delayed menstruation; the second is changes