Now, a new study suggests some women's uteruses are just more conducive for implanting embryos, both healthy and unhealthy ones. The results may explain why these so-called "super-receptive" women often have multiple miscarriages.
History of Infertility and Pregnancy Loss Rate
Miscarriage rates for women with a history of infertility tend to be higher than for fertile women. The main reason for the increased risk for miscarriage in “older” women is due to the increase in chromosomal abnormalities (abnormal karyotype) in their eggs.
Current research suggests that the presence of DNA damage in sperm can more than double the risk of miscarriage. This is very significant: until now, miscarriage has mostly been thought of as a female problem.
One study on the topic classified super fertility as having a monthly fecundity rate (the ability to get pregnant) of 60% or greater. If you are born with an abnormally high egg or sperm count, have an extremely regular cycle, or have many healthy eggs in older age, you could be “super” fertile.
You're most fertile at the time of ovulation (when an egg is released from your ovaries), which usually occurs 12 to 14 days before your next period starts. This is the time of the month when you're most likely to get pregnant.
What does high fertility mean? High fertility refers to the portion of a woman's cycle where her fertility window opens. During this time, your ovaries start to produce more estrogen as a dominant egg grows in a follicle that is eventually released during ovulation.
Most miscarriages - 8 out of 10 (80 percent) - happen in the first trimester before the 12th week of pregnancy. Miscarriage in the second trimester (between 13 and 19 weeks) happens in 1 to 5 in 100 (1 to 5 percent) pregnancies. Pregnancy loss that happens after 20 weeks is called stillbirth.
Frequent cause of miscarriages at 6-8 weeks: chromosomal abnormality. Miscarriages are a frequent and often unpreventable complication of pregnancy. On average, ca. 15% of all pregnancies are miscarried, but the rate is lower in younger women than in older women.
What causes recurrent pregnancy loss? Most pregnancy losses result from chromosomal, or genetic, abnormalities, and are random events. The abnormality may come from the egg, the sperm, or the early embryo. Approximately 12–15% of all clinically recognized pregnancies end in miscarriage.
Signs that indicate that your sperm may be unhealthy
They are: Semen Color: Yellow color semen could indicate that you have jaundice or high consumption of alcohol or food that contains high concentration of sulfur. If your semen is greenish-yellow, it is an indication that there is a bacterial infection.
“The lower the egg quality, the higher the rate of miscarriage and infertility. These are things that happen as women age. Your egg quality is determined by your age, genetics, and your environment,” explains fertility expert Aimee Eyvazzadeh, MD, MPH, who is referred to by her patients as the “egg whisperer."
Multiple miscarriages may be linked to the poor quality of a man's sperm, suggests new research. The early-stage study, from scientists at Imperial College London, investigated the sperm quality of 50 men whose partners had suffered three or more consecutive miscarriages.
Because so many different factors are at play, there are many reasons for miscarriage. Certain medical conditions can also be reasons for miscarriage. These conditions include untreated infections, diabetes, severe kidney disease, heart disease, autoimmune disorders and thyroid conditions.
If you experience two or more consecutive miscarriages, your health care provider might recommend testing to identify any underlying causes before you attempt to get pregnant again. For example: Blood tests. A sample of your blood is evaluated to help detect problems with hormones or your immune system.
Between weeks 14 and 20, the chance of experiencing a miscarriage is less than 1%. By week 20, a pregnancy loss is known as a stillbirth, and this may cause a person to go into labor.
The risk of miscarriage also decreases significantly—to about 5 percent—after your doctor detects a heartbeat. This typically occurs at around your 6 to 8 week mark. The chances of having a second miscarriage after a woman has already experienced one is also very slim at less than 3 percent.
About half of early miscarriages happen when the embryo does not develop properly. This often is due to an abnormal number of chromosomes. Chromosomes are in each cell of the body and carry the blueprints (genes) for how people develop and function.
Background. Many physicians advise pregnant women to sleep on their left side. Previous studies have linked back and right-side sleeping with a higher risk of stillbirth, reduced fetal growth, low birth weight, and preeclampsia, a life-threatening high blood pressure disorder that affects the mother.
For women who are extra fertile, pregnancy can still happen despite being on any form of birth control. While such accidental pregnancies don't happen always, it is a good sign that you are super fertile and healthy. Consider it to be a sort of positive side-effect!
Human males also detect the high-fertility (ovulatory) period in women by bodily odour [4], which may act as a form of sexual stimulant for men [5, 6].
Pregnancy is technically only possible if you have sex during the five days before ovulation or on the day of ovulation. But the most fertile days are the three days leading up to and including ovulation. Having sex during this time gives you the best chance of getting pregnant.