Thinking about pregnancy can bring a mix of excitement and a lot of questions. You might be wondering how to best support your body before trying to conceive, or what steps can help you feel confident and prepared.
Before pregnancy, a healthcare provider may recommend bloodwork to look at different aspects of your overall health. Common tests that may be considered include a comprehensive metabolic panel (CMP) and a complete blood count (CBC). Some people may also benefit from thyroid testing, especially if they have symptoms, a personal or family history of thyroid disease, or other risk factors. People planning for pregnancy are often curious about their nutritional status, too. Tests for vitamin D, vitamin B12, and folate may be helpful, depending on individual health factors. Folate is especially important; it plays a key role in early fetal development and is recommended as a supplement (folic acid) for anyone who could become pregnant. This is because early pregnancy changes happen before many people realize they’re pregnant.
In some situations, a healthcare provider may also suggest genetic carrier screening, diabetes screening, immunity testing, or STI testing based on your medical history or personal risk factors.
Medical organizations recommend tailoring pre-pregnancy testing to a person’s medical history, symptoms, and individual risk factors, rather than routine testing for everyone. While not everyone needs lab work before pregnancy, testing can be a proactive option for those who want a clearer picture of their health as they prepare for this next chapter.
Understanding your general health before pregnancy
Two commonly ordered blood tests, the CMP and CBC, can offer a broad look at how your body is functioning before pregnancy.
Comprehensive metabolic panel (CMP)
A CMP checks several important markers tied to everyday health, including:
- Kidney function
- Liver function
- Electrolytes (like sodium and potassium)
- Blood sugar levels
These results can help show how well key organs are working and may highlight issues worth addressing early.
Complete blood count (CBC)
A CBC looks at the cells in your blood, including:
- Red blood cells (RBCs), which carry oxygen
- White blood cells (WBCs), which support immune health
- Platelets, which help with blood clotting
This test is often used to screen for anemia and other blood‑related conditions. Finding issues early can allow time for treatment or lifestyle changes before pregnancy begins.
Thyroid health and pregnancy
Your thyroid is a small gland in your neck that has a big role in your health. It helps regulate:
- Energy levels
- Menstrual cycles
- Ovulation
Healthy thyroid function is also important during early pregnancy, when thyroid hormones support fetal growth and development and help meet the increased demands on the pregnant body.
Two common thyroid blood tests include:
- Thyroid‑stimulating hormone (TSH): This measures how hard your body is working to signal the thyroid to make hormones
- Free T4: This measures the amount of active thyroid hormone available in your body
Routine thyroid screening is not recommended for everyone planning pregnancy, but testing may be helpful for people with symptoms, a history of thyroid disease, or other risk factors. Identifying thyroid imbalance early gives you and your healthcare provider time to discuss management options before pregnancy, which can help support both maternal and fetal health.
Nutrients that help your body prepare for pregnancy
Good nutrition is a key part of preparing for pregnancy. Some people choose to check nutrient levels based on their diet, symptoms, or health history.
Folate (vitamin B9)
Folate supports cell growth and neural tube development in early pregnancy. Because this development happens very early, often before someone knows they’re pregnant, folic acid supplementation is recommended for all people who could become pregnant.
Vitamin B12
Vitamin B12 plays a role in:
- Red blood cell production
- Nerve function
Most people get enough B12 through food, but lower levels can occur in people with certain dietary patterns (such as vegan or vegetarian diets) or medical conditions that affect absorption.
Vitamin D
Vitamin D helps support:
- Bone health
- Calcium absorption
- Overall wellness
Vitamin D intake is important for general health, and some people may have lower levels due to limited sun exposure, dietary factors, or certain health conditions.
Testing these nutrients is optional and may be considered based on individual health factors. A healthcare provider can help determine whether testing makes sense for you.
How pre-pregnancy testing fits into your wellness journey
For some individuals, pre-pregnancy testing is one part of a broader wellness conversation—alongside medical history, nutrition, supplementation, and preventive care. For others, routine lab testing may not be necessary at all.
Pre-pregnancy testing is not required for everyone planning to conceive. A healthcare provider can help you decide whether testing is likely to be useful based on your:
- Personal health history
- Symptoms
- Lifestyle factors
- Family history
Labcorp OnDemand’s Custom Preconception Test measures key health markers—including CMP, CBC, TSH, free T4, vitamin B12, folate, and vitamin D—for those interested in a health status check before trying to conceive. It’s important to note that this type of testing does not diagnose infertility or other medical conditions. If you’re interested in fertility‑specific insights, a hormone panel that looks at ovarian reserve may be more appropriate. Your healthcare provider may also recommend additional tests based on individual risk factors.
Identifying potential concerns early may allow time to address them before pregnancy begins. Lab testing may or may not be part of that process; many people successfully prepare for pregnancy through proven steps like balanced nutrition, routine folic acid supplementation, preventive healthcare, and managing existing health conditions.
Whether you choose testing or focus on other wellness steps, evidence‑based care and personalized guidance can help you approach pregnancy planning with confidence. Knowledge now can support a healthier, more informed pregnancy journey later.
