The starting AND ending of your periods. :)
during the menstrual cycle
No, having a bath during periods does not stop periods. Menstruation isdetermined by your menstrual cycle, water is amazing but it does not have the magical ability to stop time in order to stop menstruation.
Most often missed periods occur during pregnancies.
Normally, women do not have periods or bleeding during pregnancy.
YES, a woman can get pregnant during ANY DAY of the full cycle. even during your period. before during and after.
Yes, conception can occur at any time during a cycle.
Yes.more than likely it is just a coincidence
Humans and chimpanzees are the only animals that have "periods" or menstrual cycles. Other animals of the animal kingdom undergo Estrus, or heat periods (spikes in Estrogen output) during their Estrous cycle.
The polar areas during the solstice periods.
The cell cycle can be divided into two major periods: interphase, in which the cell grows and carries on its usual activities; and the mitotic phase, during which the nucleus divides and cytokinesis forms two cells.
They used rags. That is why you hear the term of a woman being "on the rag" during her menstration cycle.