A chemical pregnancy is one that results in a miscarriage so early that it is only detectable through a hormone test.
Many women suspect that they are pregnant before an ultrasound can detect fetal development. Chemical pregnancies happen in the first several weeks of pregnancy. At this point, you could receive a positive pregnancy test but start your period. Learning more about what happens during a chemical pregnancy gives you the information you need to move forward with your care.
What is a Chemical Pregnancy?
Chemical pregnancies are true pregnancy experiences that result in an early miscarriage. But, they happen so early that you might not even know you are pregnant until you notice the symptoms.
Definition and Characteristics
According to the American Pregnancy Association, a chemical pregnancy is an early miscarriage that typically happens before the five-week mark. In some cases, you might notice a period that is late or heavier than normal.
How It Differs from Clinical Pregnancy
According to BabyCenter, a clinical pregnancy is one where the gestational sac is visible on an ultrasound or the fetal heartbeat is detectable. Chemical pregnancies are typically only recognized by hormone testing.
How It Differs from a Missed Miscarriage
A missed miscarriage occurs later in the pregnancy when an embryo stops growing but the body doesn’t pass the tissue on its own. With a chemical pregnancy, the gestational sac doesn’t grow enough to be visible.
Common Symptoms and Signs
Knowing the symptoms of a chemical pregnancy helps you understand when you might be experiencing one.
Brief Elevated HCG Levels
At conception, your body begins producing hormones to prepare for the pregnancy. The brief elevation of HCG levels is what could give you a positive pregnancy test.
Light Bleeding and Cramps
As hormone levels begin to drop, your uterus might begin to contract and shed its lining in preparation for your period.
When It May Feel Like a Slightly Late or Unusual Period
Hormone levels slowly drop off, which can lead to you experiencing your period symptoms a few days later than normal. Or, it might be heavier due to an increase in your uterine lining’s thickness.
Causes of Chemical Pregnancy
Learning about the causes of chemical pregnancies helps you know when you might be at higher risk of experiencing one.
Chromosomal Abnormalities
An abnormal number of chromosomes is a common cause of chemical pregnancies.
Hormonal Imbalances
Sometimes, a woman’s body doesn’t produce enough hormones to help the body support a pregnancy.
Underlying Health Issues
Infections, thyroid disorders and other underlying health issues could lead to chemical pregnancies.
Diagnosing a Chemical Pregnancy
A physician can help diagnose a chemical pregnancy using hormone testing.
Monitoring HCG Levels
Hormone tests typically reveal elevated HCG levels that begin dropping during a time when they should increase.
How Ultrasound Is Used (and Its Limits This Early)
An ultrasound can show a uterus that lacks a gestational sac, but this could also occur if it is too early for a normally progressing pregnancy.
Emotional Impact and Coping Strategies
Chemical pregnancies can lead to challenging emotions, especially when others didn’t know you were pregnant.
Processing Grief and Emotions
You may experience grief, along with a mixed range of emotions as you learn about the pregnancy and loss within a short period of time.
Seeking Support from Healthcare Providers
Doctors, counselors and other healthcare providers are resources you can turn to for answers and support.
This Loss Is Valid, Even Without Physical Symptoms
Acknowledging that you have experienced a genuine loss is the first step toward healing, even when you didn’t experience the physical symptoms of pregnancy.
Impact on Future Fertility
For most women, chemical pregnancies don’t have a significant impact on their future fertility.
Common Misconceptions
Experiencing a chemical pregnancy doesn’t mean that there is something wrong with your body, since this can happen due to unknown reasons.
Fertility After Chemical Pregnancy
Most women can begin trying to get pregnant by the next ovulation cycle, but you’ll want to talk to your doctor for confirmation.
When to Talk to a Doctor About Recurring Chemical Pregnancies
If you experience two or more chemical pregnancies, then talking to your doctor can help you find out if there are any underlying causes for the chemical pregnancies.
Risk Factors Associated with Chemical Pregnancy
Even though a chemical pregnancy can happen to anyone, it helps to know if you have specific factors that could raise your risk of experiencing one.
Age and Genetic Factors
According to the American College of Obstetricians & Gynecologists, approximately one in three pregnancies end in miscarriage for women over 40.
Lifestyle and Environmental Factors
Being under stress, using tobacco and alcohol and having underlying health conditions can all increase your risk of having a chemical pregnancy.
Preventive Measures and Medical Guidance
Making sure you are in good overall health and seeking medical guidance for any concerns helps you prevent chemical pregnancies.
Working with Healthcare Professionals
A healthcare professional is the best person to turn to when you believe you are experiencing a chemical pregnancy or have recurring losses.
Questions to Ask Your Doctor
You’ll want to ask your doctor to test for thyroid disorders, infections and other underlying causes, especially if you are actively trying to get pregnant.
Frequently Asked Questions
These common questions can help you gain deeper knowledge of why chemical pregnancies happen and how to handle one.
How do you know when it’s a chemical pregnancy?
A doctor can track your hormone levels and check for a gestational sac to diagnose a chemical pregnancy.
What is the main cause of chemical pregnancy?
Chromosomal abnormalities are the most common cause of chemical pregnancies.
What is the difference between a chemical pregnancy and a missed miscarriage?
A missed miscarriage is a loss where the body doesn’t expel the tissue. Meanwhile, a chemical pregnancy involves an embryo never actually developing within the uterus.
How common is chemical pregnancy?
Chemical pregnancies are extremely common and account for the majority of early pregnancy losses.
Is a chemical pregnancy considered a miscarriage?
Yes, most physicians describe a chemical pregnancy as an early type of miscarriage that can still generate strong physical and emotional symptoms.
