Skip alcohol, tobacco, high-mercury fish, unsafe foods, heat, and risky meds while trying to get pregnant for the best start.
If you’re planning a pregnancy, a few smart “no-go’s” raise your chances and cut avoidable risks. This guide gives clear lines on what to avoid, why it matters, and what to do instead. You’ll also see quick tables so you can act fast without extra tabs.
What To Avoid While Trying To Get Pregnant: Daily Habits That Mess With Timing
Your cycle runs on tight signals. Some habits throw off ovulation or lower sperm quality. Others raise the chance of early problems once you conceive. Tackle the big hitters first: alcohol, nicotine (including vapes), marijuana and other drugs; hot tubs and saunas; and certain medications and supplements that aren’t pregnancy-safe.
Quick-Scan Table: Common Exposures To Skip And Safer Swaps
| What To Skip | Why It Matters | Safer Swap |
|---|---|---|
| Alcohol (any amount) | Linked to fetal alcohol effects once pregnant; no known safe level once pregnancy starts. | Zero alcohol; pick mocktails or seltzer. |
| Smoking & Vaping (nicotine) | Tied to lower fertility and early problems once pregnant. | Quit plan; nicotine-free aids cleared with your clinician. |
| Marijuana & Other Recreational Drugs | May affect hormones, decision making, and early fetal development. | Stop use; seek treatment help if stopping is tough. |
| High-Mercury Fish (shark, swordfish, bigeye tuna, king mackerel, marlin) | Mercury can build up and affect a growing baby’s brain and nerves. | Pick low-mercury fish like salmon, sardines, shrimp; watch weekly amounts. |
| Raw/Undercooked Meat, Fish, Eggs; Unpasteurized Dairy | Foodborne germs can cause miscarriage or severe illness in newborns. | Cook to safe temps; choose pasteurized dairy. |
| Hot Tubs, Very Hot Baths, Saunas | High heat can affect ovulation signals and sperm production. | Warm, not hot; keep tub temps under ~37–38°C (98–100°F). |
| Certain Meds & High-Dose Supplements (e.g., isotretinoin; high vitamin A) | Some are known to cause birth defects or early loss. | Ask your clinician to review all meds/supplements before you try. |
| Douching & Scented Vaginal Products | Upsets healthy flora; may raise infection risk. | Skip entirely; gentle external wash only. |
| Oil-Based Lubes With Condoms; Sperm-toxic Lubes | Oil weakens latex; many lubes slow sperm. | Use sperm-friendly lubes (labeled) or pre-seed types. |
| Extreme Exercise Or Sudden Overtraining | Energy deficit may disrupt ovulation. | Balanced plan; mix moderate cardio and strength with rest days. |
| Harsh Solvents And Pesticides | Some chemicals are linked to fertility and early pregnancy risks. | Use gloves, ventilation, and safer products; avoid direct contact when you can. |
Avoiding Risks While Trying To Get Pregnant — Practical Rules
Alcohol: Go Dry Once You’re Trying
Pregnancy can begin before a test turns positive. That’s why the cleanest choice while trying is no alcohol. If stopping is hard, line up help now so you don’t stall plans. Many people need a mix of coaching, peer groups, or meds from their clinician.
Smoking, Vaping, And Nicotine Pouches
Nicotine narrows blood vessels and can lower fertility. Smoke adds a large toxin load. Quit methods that keep nicotine out of your bloodstream are best; some people still use short-term nicotine replacement with a prescriber’s plan. Set a date, remove triggers, and pair a quit aid with a daily routine shift.
Recreational Drugs, Including Marijuana
THC and other drugs can alter hormone signals and sleep. They may also add risk once pregnant. Pause use fully while trying. If you’ve used daily, plan a taper with medical guidance and swap in stress-relief habits that don’t involve substances.
Food Safety Tightened Up
Keep a tight kitchen playbook. Cook meats to safe temps. Avoid raw fish and runny eggs. Choose pasteurized milk and soft cheeses made with pasteurized milk. Reheat deli meats until steaming. Wash produce well. These steps lower the chance of listeria, toxoplasma, and salmonella.
Caffeine: Cap It At About 200 Mg A Day
Staying under roughly 200 mg per day keeps you in a conservative range while trying to conceive. That’s about one 12-ounce brewed coffee. Tea, energy drinks, and chocolate also add up. If you drink more, cut back over a week to avoid headaches and poor sleep.
Fish: Keep The Brain-Healthy Picks, Skip The High-Mercury Ones
Fish gives DHA and iodine, which are useful once pregnant. The goal is balance: stick to lower-mercury choices and watch weekly amounts. Use the official chart to steer your cart, then add a reminder in your notes app.
Heat Exposure: Dial It Down
Skip hot tubs and very hot baths while you’re trying. High core temps can affect ovulation signals and sperm quality. If you love a soak, keep the water warm, shorten sessions, and drink water before and after.
Medication And Supplement Review
Before you start trying, list every prescription, over-the-counter pill, herbal blend, and vitamin. Some acne meds (like isotretinoin), some seizure meds (such as valproate), and high-dose vitamin A are known risks. Many drugs have safer swaps you can use in the same class. Bring the list to your next visit and ask for a pre-pregnancy plan.
Infections And Travel
Handwashing, food safety, and up-to-date vaccines cut a lot of risk. If travel could expose you to viruses known to affect early pregnancy, pause that trip or build in the right waiting window before trying. Your local clinic can give region-specific advice and timing.
Cats, Gardening, And Toxoplasma
You can keep your cat. Try to have someone else change the litter box. If you must do it, wear gloves, change daily, and wash hands well. In the yard, wear gloves and wash up after soil work. Cook meat fully and rinse produce well to reduce risk from other sources.
Weight, Fuel, And Training Balance
Cycles need enough energy and steady thyroid function. A body mass index in the mid-range often tracks with better odds, but the real target is steady fueling and a program you can maintain. If you’ve been dieting hard or running high mileage, add a rest day and a snack window around training. Aim for protein at each meal and carbs around workouts.
Lube And Vaginal Care
Many household lubes slow sperm. Pick a product labeled sperm-friendly. Skip douching and scented internal products; they disrupt the natural balance and can raise infection risk.
Fish To Avoid Now, Plus Smart Swaps
Here’s a quick fish guide you can screenshot. Keep a simple weekly plan: two low-mercury fish meals, rotate choices, and avoid the high list entirely while trying to conceive.
| Skip | Better Choice | Usual Portion Guide |
|---|---|---|
| Shark | Salmon, sardines | 1–2 meals/week total low-mercury picks |
| Swordfish | Trout, tilapia | Keep variety across weeks |
| King Mackerel | Atlantic mackerel (not king) | Check labels for species |
| Bigeye Tuna | Light tuna (not albacore) | Watch total tuna ounces |
| Marlin | Shrimp, pollock | Frozen and canned both fine |
| Tilefish (Gulf of Mexico) | Cod, haddock | Pair with veggies and grains |
| Orange Roughy | Anchovies, catfish | Small fish = lower mercury trend |
Smart Prep That Boosts Your Odds
Start A Prenatal And Time Intercourse
A daily prenatal with 400–800 mcg folic acid lowers neural tube defect risk once you conceive. Begin now. Track ovulation with LH strips or a basal temp method and aim for sex every day or every other day in the fertile window.
Sleep, Light, And Screen Time
Seven to nine hours helps hormone rhythms. Keep a stable wake time, dim screens late, and push caffeine to the morning only. Poor sleep can nudge cravings and lower drive to work out, which can ripple into cycle timing.
Work And Home Chemical Safety
If you handle paints, solvents, or pesticides, add gloves, masks, and ventilation. Store chemicals away from living spaces. If a task smells strong or makes you dizzy, step out and switch duties.
What To Avoid While Trying To Get Pregnant — Clear Takeaways
Use this short list as your baseline while trying to conceive: no alcohol; quit nicotine and drugs; cap caffeine at ~200 mg daily; skip hot tubs and saunas; avoid high-mercury fish; stick to pasteurized dairy and fully cooked foods; review meds and supplements with your clinician; keep cats but hand off the litter box; protect yourself from harsh chemicals at work and at home. Keep these moves in place through the two-week wait and the first visit once you’re pregnant.
Make two calendar reminders today: “Prenatal daily” and “Fish: low-mercury only.” Then add a one-line sticky note on your phone: “Warm baths, not hot.” Small steps pay off when done every day.
Helpful references you can bookmark: the FDA/EPA fish advice for a full “choose/avoid” list, and ACOG’s note on a 200 mg caffeine limit while pregnant.
You’ll see the phrase what to avoid while trying to get pregnant appear in search and on checklists. Keep this page handy so you’re set before that first positive test.