In this article:
What is a Miscarriage?
A miscarriage or spontaneous abortion is the unexpected loss of pregnancy in the first 20 weeks after conception. When a couple is expecting a child, one of the worst things that may happen is a miscarriage. Just as you start to dream of a future after seeing the positive test results, it's all ripped away from you. You shouldn't feel alone if this happened to you.
As the pregnancy advances, the chances of having a miscarriage or loss of pregnancy decline. As per clinical data, most pregnancy losses happen during the first 12 weeks. Around 10–20% of pregnancies end in miscarriage, often in the early weeks.
It is highly unlikely that a pregnancy would end in miscarriage if an ultrasound had detected a normal foetal heartbeat.
Common Causes of Miscarriage in Early Pregnancy
The common causes of miscarriage in the early months of pregnancy are mentioned below:
Abnormalities in Foetal Chromosomes
Miscarriages in early pregnancies most commonly happen due to chromosomal abnormalities. These conditions include:- Missing chromosomes
- Extra chromosomes (trisomy/polysomy)
- Structural chromosomal abnormalities
Hormonal Imbalances
Early pregnancy depends heavily on hormonal support. Hormones like progesterone help maintain the uterine lining after implantation.The following are the common conditions responsible for hormonal imbalance:
- Thyroid disorders
- Polycystic ovary syndrome (PCOS)
- Luteal phase defects
Maternal Health Conditions
Mother’s conditions that are most often linked with early pregnancy loss include:- Diabetes
- Thyroid disease
- Certain autoimmune disorders, such as antiphospholipid syndrome
- Severe infections
Uterine and Cervical Factors
In some cases, the structure of the uterus or cervix plays a role in early pregnancy loss. These issues are usually identified through ultrasound or other diagnostic evaluations.
| Condition | What it means |
| Fibroids | Non-cancerous growths in the uterus that may interfere with implantation or space for growth |
| Congenital uterine shape differences | The uterus has an unusual shape from birth |
| Intrauterine scar tissue | Adhesions inside the uterus that may affect implantation |
| Cervical insufficiency | The cervix weakens too early and may not remain closed during pregnancy |
Evaluation before pregnancy can help determine whether any of these factors need treatment or monitoring.
Infections
If you have a history of the following infections, then there are high chances of early pregnancy loss.These include:
- TORCH infections, such as rubella and toxoplasmosis
- Listeria infection (often linked to contaminated food)
- Untreated sexually transmitted infections
Lifestyle Factors
Some lifestyle exposures are associated with a higher risk of miscarriage. These include:- Smoking
- Alcohol consumption
- Recreational drug use
- Excessive caffeine intake
- Exposure to harmful environmental toxins.
Age
Age is an important factor to consider. As age increases, egg quality may decline. Therefore, the chances of chromosomal changes may rise. However, many people still have healthy pregnancies with the right care.Implantation Issues
For a pregnancy to continue, the embryo must attach properly to the uterus.However, if implantation is not successful, it may lead to very early loss. This is sometimes called a chemical pregnancy.
Immune and Blood Clotting Conditions
In some cases, the immune system may react in a way that affects pregnancy.The autoimmune conditions that can interfere with blood flow to the placenta include:
- Antiphospholipid syndrome
- Lupus
- Blood clotting disorders
Previous Pregnancy Loss
If you have had a miscarriage before, you may feel worried. That is completely understandable.In some cases, repeated losses may be linked to genetic or medical concerns. Therefore, your doctor may suggest further evaluation or counselling.
What are the Signs of Early Miscarriage?
The early signs that indicate a miscarriage include:
- Spotting
- Mild to severe abdominal discomfort
When Should You Seek Immediate Medical Advice?
You should consult a doctor if you notice:
- Vaginal bleeding with cramps
- Severe abdominal pain
- Passing tissue
- Sudden loss of pregnancy symptoms
You require immediate medical care for the following symptoms, which could indicate an infection:
- Heavy bleeding or worsening bleeding
- Fever
- Chills
- Intense pain
What To Do Following a Miscarriage?
- Reach out to your doctor. They will manage your condition with appropriate treatment planning.
- Don’t put anything inside your vagina for at least two weeks after a miscarriage. This includes tampons, sexual intercourse and fingers or sex toys.
- Your doctor will schedule a follow-up appointment with you to discuss your recovery and any complications.
A miscarriage may be a terrible loss that leaves a person feeling devastated with many unanswered questions. It usually takes more time and effort to heal emotionally after a miscarriage than it does physically. Give yourself time to grieve. You may feel confused or even guilty.
However, most miscarriages happen due to medical reasons beyond your control. Understanding the causes can help you feel more informed. It can also help you take the right steps for future planning.
You can share your feelings with those closest to you, such as your spouse or family. Surround yourself with supportive people.
If you have any concerns, don't hesitate to contact a qualified healthcare provider. You may also choose to seek a professional counsellor to help you cope with such a loss.
Most importantly, many people go on to have healthy pregnancies after a miscarriage.
Whether you’re pregnant, a new mom, or navigating postpartum, you don’t have to do it alone. Join our support group to connect, share, and support one another.
FAQs on Common Causes of Miscarriage in Early Pregnancy: What You Should Know
- In which gestation week does miscarriage often occur?
Most miscarriages tend to occur during the first 12 weeks of pregnancy. - Can miscarriage happen after 7 weeks?
Yes, the risk generally decreases over time. The detection of a heartbeat on an ultrasound at this time is a positive sign of a successful pregnancy. For some, it happens slightly later. - When does the risk of miscarriage decline?
After the first trimester, the risk of miscarriage decreases significantly.