The Complete Preconception Health Checklist
Preparing your body 3–6 months before trying to conceive can significantly improve your chances of a healthy pregnancy. This evidence-based checklist covers every step — from nutrition to screenings — recommended by ACOG and the CDC.
- Start prenatal vitamins with 400–800 mcg folate now
- Schedule a preconception visit with your OB/GYN or midwife
- Review all medications with your provider for pregnancy safety
- Update vaccinations — especially rubella and varicella immunity
- Optimize lifestyle — nutrition, exercise, sleep, stress management
Prenatal Vitamins & Nutrition
The single most important step is starting folate supplementation. Neural tube development occurs in weeks 3–4 of pregnancy — often before you even know you're pregnant.
The CDC recommends 400 mcg of folic acid daily for all women of reproductive age. Women with a history of neural tube defects, certain medications (like anti-epileptics), or MTHFR variants may need 800–4,000 mcg. ACOG guidelines align with these recommendations.
Key nutrients for preconception:
- Folate (400–800 mcg): Prevents neural tube defects. Start at least 1 month before conception, ideally 3 months.
- Iron (27 mg during pregnancy): Blood volume increases 40–50% during pregnancy. If you're already low, build stores now.
- Vitamin D (600–4,000 IU): Associated with improved implantation rates and pregnancy outcomes. Many adults are deficient.
- Omega-3 DHA (200–300 mg): Supports fetal brain and eye development. Found in fatty fish and algae-based supplements.
- Choline (450 mg): Often missing from prenatals. Critical for fetal brain development. Eggs, liver, and cruciferous vegetables are good sources.
- Iodine (150–220 mcg): Essential for thyroid function and fetal neurological development.
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A preconception visit gives your provider the chance to identify and address issues before they complicate pregnancy.
What to expect at your preconception visit:
- Comprehensive medical history — including family history of genetic conditions, pregnancy complications, and chronic diseases
- Blood work — CBC, blood type and Rh factor, rubella and varicella immunity, STI screening, thyroid function (TSH)
- Pap smear if due for cervical cancer screening
- Chronic condition assessment — diabetes, hypertension, thyroid disorders, autoimmune conditions need to be well-controlled before conception
- BMI discussion — both underweight (BMI <18.5) and obesity (BMI >30) can affect fertility and pregnancy outcomes
Schedule a dental cleaning and address any needed work before pregnancy. Pregnancy hormones increase gum disease risk, and untreated periodontal disease is associated with preterm birth. Most dental X-rays and local anesthetics are safe during pregnancy, but elective work is easier before.
Medication Review
Some medications are unsafe during pregnancy and need to be switched or tapered well in advance. Never stop a medication without consulting your provider.
Several common medications need 1–3 months (or longer) to safely transition before conception. These include certain acne treatments (isotretinoin requires a 1-month washout), some anti-epileptics, certain blood pressure medications (ACE inhibitors, ARBs), warfarin, and some psychiatric medications. Discuss ALL medications — including OTC and supplements — with your provider.
Vaccinations
Some vaccines can't be given during pregnancy, so verify immunity beforehand.
| Vaccine | Why It Matters | Timing |
|---|---|---|
| MMR (Measles, Mumps, Rubella) | Rubella in early pregnancy causes severe birth defects | At least 4 weeks before conception |
| Varicella (Chickenpox) | Chickenpox in pregnancy can cause congenital varicella syndrome | At least 4 weeks before conception |
| HPV | Not given during pregnancy; complete series if under 26 | Complete before conception |
| Flu shot | Pregnant women are at higher risk for severe flu | Safe anytime, including during pregnancy |
| Tdap | Protects newborn from whooping cough | Given during each pregnancy (27–36 weeks) |
| COVID-19 | CDC recommends staying up to date | Safe before and during pregnancy |
Lifestyle Adjustments
Nutrition
Focus on a balanced, nutrient-dense diet. The Mediterranean dietary pattern has been associated with improved fertility outcomes in observational studies.
- Increase: leafy greens, whole grains, lean protein, healthy fats (avocado, nuts, olive oil), colorful fruits and vegetables
- Limit: processed foods, added sugars, trans fats, excessive caffeine (<200 mg/day — about one 12-oz coffee)
- Avoid: high-mercury fish (swordfish, king mackerel, tilefish), raw/undercooked meats, unpasteurized dairy
Exercise
Moderate exercise supports fertility and prepares your body for pregnancy. ACOG recommends 150 minutes per week of moderate-intensity activity. If you're not currently active, start gradually. If you're a high-intensity athlete, discuss your training load with your provider — very intense exercise can sometimes disrupt ovulation.
Substances
- Alcohol: No known safe amount during pregnancy. ACOG recommends stopping when you start trying.
- Smoking: Reduces fertility in both women and men. Cessation improves outcomes. Ask your provider about cessation support.
- Cannabis: ACOG recommends discontinuing. THC crosses the placenta and is found in breast milk.
- Caffeine: Moderate intake (<200 mg/day) appears safe. Higher intake may be associated with longer time to conception.
Environmental Exposures
Reduce exposure to endocrine-disrupting chemicals where practical: switch to BPA-free containers, avoid heating food in plastic, choose fragrance-free personal care products, and use non-toxic cleaning supplies. This isn't about perfection — small changes add up.
Your Partner's Checklist
Fertility is a two-person project. Sperm takes about 74 days to mature, so lifestyle changes should start at least 2–3 months before trying.
Male factor contributes to approximately 40–50% of infertility cases. Sperm quality is influenced by temperature, nutrition, substance use, medications, and overall health. A semen analysis is the single most informative male fertility test.
Partner's checklist:
- Start a multivitamin with zinc, folate, selenium, and vitamins C and E
- Quit smoking and limit alcohol (— both impair sperm quality)
- Avoid excessive heat exposure to the testicles (hot tubs, saunas, laptop on lap)
- Review medications with a provider (some affect sperm production)
- Consider a baseline semen analysis, especially if over 35 or with known risk factors
- Maintain a healthy weight — obesity is linked to reduced sperm quality
Mental Health Prep
Trying to conceive can be emotionally intense. Setting up support structures before you start can make the journey easier.
- Discuss expectations with your partner about timeline, stress management, and when to seek help
- Establish a mental health baseline — if you have a history of anxiety or depression, ensure your treatment plan is pregnancy-compatible
- Build your support network — identify a friend, family member, or therapist you can talk to
- Set boundaries around who you tell about your TTC plans and how you'll handle questions
Timeline: Month-by-Month
| When | Action Items |
|---|---|
| 6 months out | Start prenatal vitamins, schedule preconception visit, begin lifestyle adjustments, review medications |
| 4–5 months out | Complete vaccinations (MMR/varicella if needed), dental visit, address chronic conditions, partner starts supplements |
| 3 months out | Genetic carrier screening if desired, finalize medication transitions, establish exercise routine |
| 1–2 months out | Begin tracking cycles (OPKs, BBT, or cervical mucus), stop hormonal birth control if applicable, reduce/eliminate alcohol |
| Ready to try | Have sex every 1–2 days during fertile window, continue prenatals, manage stress, enjoy the process |
You don't need to be perfect. Start prenatal vitamins, see your doctor, review your medications, and make reasonable lifestyle adjustments. Most healthy couples conceive within 6–12 months of trying. The goal is giving your body the best possible starting point.
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