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However, a brief review of the typical phases of your menstrual cycle can help you feel more clear about just when you can conceive.
Your body is making efforts every month to produce an egg, nurture the sperm that can potentially fertilize it, and sustain any conception that takes place. At the beginning of your cycle the lining that your body built up on the wall of your uterus to nurture a possible pregnancy begins to shed. As your period is ending your body begins producing another hormone called luteinizing hormone or LH.
As your cycle moves on the follicle race has been on hot and heavy – and a winner is beginning to emerge.
Another hormone, known as gonadotropin-releasing hormone, or GnRH is believed to work together with estrogen in this process, though it isn’t as well understood as the others. Just before ovulation estrogen is going to take an abrupt backseat when LH and FSH make a surge from the rear. Occasionally two follicles manage to mature with each other and each bursts to release an ovum.
Your ovum is grabbed by soft hair-like projections called the fimbria and ushered into your fallopian tubes.
Regardless of whether your ovum is happily fertilized or not your body’s hormonal symphony continues with the expectation of pregnancy.
It, along with small amounts of estrogen, will cause your body’s fertile signs to end. At this point LH, FSH, and GnRH are kept at very low levels by the estrogen and progesterone.
If fertilization has occurred the developing baby releases hCG, a hormone that signals the corpus luteum to keep going rather than breaking down.
If this hasn’t occurred the last couple of days in this cycle arrive with drastically reduced progesterone. You heard all this menstrual cycle stuff during that infamous “girls and boys to separate rooms” class in the fifth grade!
The hormones that have sustained the build-up of the lining have stopped flowing (and no new pregnancy is producing hormones). It begins in tiny amounts that gradually increase, sending messages out to the rest of your body. These accompany the different stages of your cycle and give you an awesome insight into just when you should try to conceive. The follicle goes through a change to become the corpus luteum – this transformation allows it to secrete copious amounts of progesterone. The lining of your uterus, the endometrial lining, continues to increase through this time.
Without LH to keep it going the corpus luteum will begin to disintegrate (it keeps secreting large amounts of progesterone as this occurs).
We’re going to start here, nonetheless, and then move on to how you can make sure you don’t have a period for quite awhile! Your ovaries take action upon receiving this hormonal message and several follicles begin to mature, each one hoping to be responsible for ovulation in a couple of weeks! The LH secretion is the result of a complex interplay of hormones that is believed to begin with tiny amounts of estrogen being produced on the surface of the maturing follicles. At some point the follicle will burst and out comes your egg – daintily called an ovum.
Things can delay ovulation (stress is a big one!) You may find that you’re not even ovulating every cycle!
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