Spontaneous Miscarriages: Chances of Getting Pregnant


Spontaneous miscarriages, the natural loss of pregnancy before the 20th week, are heart-wrenching yet common experiences, affecting a significant number of pregnancies. If you’re here seeking answers after experiencing a spontaneous miscarriage, you’re not alone.

Dr. Katharina Spies discusses what they are, their causes, symptoms, treatments, and associated emotions, providing essential support for those affected.

What is a Spontaneous Miscarriage? What week do most miscarriages happen?

A spontaneous miscarriage refers to the unexpected loss of a fetus before the 20th week of pregnancy, most commonly occurring in the first trimester.

While it’s an emotionally challenging event, it’s important to remember that it’s not uncommon.

Causes of Miscarriages: How common are miscarriages?

In fact, it’s estimated that about 10-20% of confirmed pregnancies end in miscarriage, though the actual number might be higher as many occur before a woman realizes she’s pregnant.

What causes spontaneous miscarriages in early pregnancy?

Spontaneous miscarriages are often the result of chromosomal issues that hinder the normal development of the fetus. However, there are other common causes for miscarriages:

  • Fetal causes: as mentioned earlier, chromosomal abnormalities can prevent correct embryonic development.
  • Maternal causes: changes in the uterine cavity, infections, or endocrine diseases like diabetes or celiac disease can also lead to miscarriages.

Maternal causes that can lead to Spontaneous Miscarriages

  • Hormonal issues: Hormonal imbalances can affect the uterus’s ability to sustain a pregnancy.
  • Chronic diseases: Conditions such as uncontrolled diabetes or thyroid problems.
  • Infections: Certain infections can increase the risk.
  • Immunological problems
  • KIR and HLA-C incompatibility
  • Uterine or cervical problems: Anomalies in the uterus or cervical issues can lead to miscarriages.
  • Lifestyle factors: Smoking, excessive alcohol consumption, and illicit drug use.
  • Maternal age: The risk of miscarriage increases, especially after the age of 35.

How to Reduce the Risk of Having a Miscarriage

The best prevention is early and comprehensive prenatal care. Avoiding risk factors and ensuring optimal health before pregnancy is crucial.

While many causes of spontaneous miscarriages are beyond our control, steps can be taken to reduce the risk. These include:

  • Maintaining a healthy lifestyle
  • Managing pre-existing medical conditions
  • Avoiding harmful substances and certain medications

Experiences of a Spontaneous Miscarriage

Spontaneous miscarriages are painful and unfortunately common experiences for many women on the journey to motherhood. Recently, we received a letter from G.D, a patient at Vida Fertility, shedding light on this journey.

G.D shares her story of wanting to become a mother for four or five years, but facing repeated failures.

She naturally conceived three times, each ending in miscarriage. This led her to explore Assisted Reproduction and IVF treatments, ultimately choosing Vida Fertility for its new facilities and high success rate.

Through her interactions with Mrs. Beatrice and Dr. Spies, and the caring nursing staff, she felt secure and well-supported.

“Thanks to the clinic and her perseverance, G.D became a mother for the first time”, expressing gratitude especially to Dr. Spies and Mrs. Beatrice.

Fertility techniques and studies to reduce Spontaneous Miscarriages

Identifying the cause of spontaneous miscarriages is crucial in understanding why proper embryonic development isn’t achieved. Dr. Spies outlines various studies conducted at Vida Fertility to address this:

  • Genetic Study of the Couple: Analyzing the parents’ karyotypes is essential for identifying potential chromosomal abnormalities, which account for 3-5% of recurrent miscarriages. Genetic analysis of miscarriage remains is crucial as embryonic development anomalies cause over 75% of cases.
  • Hematological Study: Special blood tests are done to identify coagulation disorders that might explain miscarriages. Conditions like antiphospholipid syndrome, which account for 10-15% of cases, can be treated with aspirin and heparin.
  • Uterine Examination: High-resolution hysteroscopy and ultrasound are used to explore uterine malformations, such as septa or partitions, which can be surgically corrected. The examination also assesses the presence of fibroids, polyps, infections, inflammations, and cervical incompetence, treatable through surgery or medication.

Autoimmune Alterations: Potential immunological disorders that could cause implantation failures are investigated, although, currently, no proven immunological therapy exists to increase reproductive probability in these cases.

Dr. Spies

Vida Fertility | Fertility Clinic in Madrid and Alicante

Experiencing sadness and grief is natural. Seeking support from family, friends, or mental health professionals is crucial for the healing process.

At Vida Fertility, we are dedicated to providing you with the support and solutions needed on your journey to motherhood. If you’re seeking answers after a spontaneous miscarriage or looking to explore fertility treatment options, we are here to assist you.

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