Immediately after ovulation, the menstrual cycle enters the luteal phase- the time when PMS typically begins. Because this is a critical time for conception, the hormones estrogen and progesterone begin to increase in order to prepare the uterus for an embryo. If conception does not occur, the hormone levels return to normal and the lining of the uterus sheds in a menstrual period. While an exact cause of PMS is not known, its occurrence during this phase of a menstrual cycle indicates that the hormonal changes are likely related to it. How to Know if It Is PMS In order to be considered PMS, symptoms must begin no earlier than day 14 of the menstrual cycle (or the day of ovulation) and extend no further than 4 days into the next cycle (after the menstrual flow begins). Symptoms will likely inhibit the woman’s life in some form or fashion. PMS typically appears as cramping, bloating, irritability, fatigue, sore breasts and headaches, among a few other things. If the symptoms and timing coincide, it is likely PMS. The Luteal Phase Also called the premenstrual phase or ovulatory phase, this is a pivotal time for those trying to conceive. A normal cycle [...]
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