After a woman starts her menstrual cycle, one egg is ovulated and about 1,000 (immature) eggs are lost each month. The number of eggs a woman loses each month is not influenced by anything that can be controlled.
How many eggs do women have in their 30s? There is no one right answer to this question, as certain factors – such as smoking or other personal factors – may mean a woman has fewer eggs than others. The average number of oocytes at the age of 30 would be around 72,000 (12% of maximum pre-birth levels).
Women lose 90 per cent of the eggs in their ovaries before the age of 30, new research has shown. The mathematical model shows that the average woman has only 12 per cent of her eggs left by the age of 30 and only three per cent by the age of 40.
In a small number of women, more than one egg is released during ovulation. This is known as hyperovulation and it's often behind multiple pregnancies (twins, triplets, etc.) There are a number of reasons why a woman might release more than one egg during their reproductive window.
Some females may produce more FSH (follicle-stimulating hormone) in the body. So more than one follicle can become dominant, resulting in the release of more than one egg. Females having a family history of multiple pregnancies have a greater chance of getting pregnant with more than one baby at once.
The fecundity of women decreases gradually but significantly beginning approximately at age 32 years and decreases more rapidly after age 37 years, reflecting primarily a decrease in egg quality in association with a gradual increase in the circulating level of follicle-stimulating hormone and decreases in circulating ...
Hyperovulation can't be easily detected using ovulation kits. The only way to tell for sure if you're hyperovulating is through an ultrasound. A sign of hyperovulation could also be more white, stretchy vaginal discharge.
Of course, as women age, the odds of conceiving also gradually lower. The ideal childbearing age is often considered to be in the late 20s and early 30s. Pregnancies later in life could come with some health risks.
Irregular period cycle and difficulty conceiving
If you are facing issues conceiving and have not been able to conceive for a while now, it could be one of the signs of bad egg quality.
A woman's peak reproductive years are between the late teens and late 20s. By age 30, fertility (the ability to get pregnant) starts to decline. This decline happens faster once you reach your mid-30s. By 45, fertility has declined so much that getting pregnant naturally is unlikely.
There are two good ways to measure egg count: an antral follicle count and an AMH (anti-Müllerian hormone) test. During an antral follicle count, a doctor uses ultrasound to count the visible follicles. Each follicle contains an immature egg that could potentially mature and ovulate.
Women in their early thirties are generally better off than women in their late thirties as ovarian reserve declines sharply in the late thirties. For example, a woman at 30 often has around 100,000-150,000 eggs in reserve.
Fertility treatments can play a big role in increasing the likelihood of having twins. In particular, assisted reproductive technologies such as in vitro fertilization (IVF) and ovulation-stimulating medications can make a person more likely to conceive twins.
Fertility treatment
Some fertility drugs work by stimulating a woman's ovaries, which can sometimes cause them to release more than one egg. If sperm fertilizes both of these eggs, this can result in twins. In vitro fertilization (IVF) can also increase the chance of conceiving twins.
As eggs, or Oocytes, are microscopic, you cannot really determine how many you have. However, the immature egg cells secrete a hormone call AMH (anti-Mullerian hormone) which can be measured and interpreted in the context of what is the average measure of this hormone for one's age group.
Once your discharge becomes scant and sticky again, ovulation is over. Some women also report mild breast tenderness around this fertile window time. Pay attention to your body each month and start to track noticeable changes and symptoms.
The medications most commonly used in our practice for ovulation induction and superovulation include clomiphene citrate [Clomid] and tamoxifen (which are orally administered) and fertility medications that are given by injection, such as, Follistim®, Gonal F®, and Menopur®.
At the age of 37, the average woman has around 25,000 eggs left, and by the time she reaches 51, this will have fallen to 1,000. “Just before menopause, your egg supply reaches below 1,000, and ovulations space out before they stop altogether, eventually,” says Dr. Sekhon.
The study published by the University of St. Andrews and Edinburgh University in Scotland found that women have lost 90 percent of their eggs by the time they are 30 years old, and only have about 3 percent remaining by the time they are 40.
At 37, you're down to just 25,000 -- or 2.5% of your starting count. That matters because the fewer eggs in your ovaries, the lower your odds for conception. Even if you do get pregnant, your older eggs are more likely to have abnormal chromosomes, which may raise your chance of miscarrying your baby.