# Day 25: The caffeine line

> Coffee doesn't have to go. The line is under 200 mg a day, and today you'll add up where your usual cups land.

- Series: Your first month of pregnancy, day by day (https://chorevia.com/learn/pregnancy-month-1), day 25 of 280, 3 weeks + 4 days
- Your baby this week: a single cell, then a ball of cells
- Canonical URL: https://chorevia.com/learn/pregnancy-month-1/day-25
- Last reviewed: 2026-10-22
- Publisher: Chorevia (https://chorevia.com)
- Cite as: Chorevia. "Day 25: The caffeine line." Last reviewed October 22, 2026. https://chorevia.com/learn/pregnancy-month-1/day-25

This guide is general education that summarizes published research and guidance from groups like the American Academy of Pediatrics, the CDC, and the WHO. It isn’t medical advice, and every child develops on their own timeline. Your pediatrician knows your child; if something feels wrong, call them. In an emergency, call 911.

Three weeks and four days, counted the way every provider counts, from the first day of your last period. Today is about coffee: not giving it up, but knowing where the line is and where your usual cups land.

## Your baby

Around now your baby is a ball of cells settling into the lining of your uterus. After conception the zygote implants in the uterine wall, and the cluster of cells that will form the placenta supplies the fetus with nutrients and oxygen ([NICHD](https://www.nichd.nih.gov/health/topics/pregnancy/conditioninfo)). That cluster is this week's main work.

No source gives a length this early, so there is no seed or fruit to picture yet. What you have is one cell that became a ball of cells, with half its DNA from each parent ([MedlinePlus](https://medlineplus.gov/ency/article/002398.htm)).

## Your body

The question you may be asking at the coffee pot has a plain answer. Keep caffeine under 200 mg a day ([MedlinePlus](https://medlineplus.gov/pregnancyandnutrition.html)). In MedlinePlus's words, "it is fine to have 1 or 2 small cups (240 to 480 milliliters) of caffeinated coffee or tea a day" ([MedlinePlus](https://medlineplus.gov/ency/article/002445.htm)). The Office on Women's Health draws the same line at about the amount in 12 ounces of coffee, and says to ask your doctor ([OWH](https://womenshealth.gov/pregnancy/youre-pregnant-now-what/staying-healthy-and-safe)).

If you have been dragging this week, caffeine is the obvious fix and a poor one at bedtime. Many people need more sleep than usual in the first trimester, and limiting caffeinated drinks, soda, coffee, and tea, is on the list of what helps you get it ([MedlinePlus](https://medlineplus.gov/ency/patientinstructions/000559.htm)).

## Try today

### The caffeine tally

- **Time:** 5 minutes, with yesterday in mind

1. Write down everything with caffeine you drank or ate yesterday, with the size of each.
2. Coffee is 75 to 100 mg per 6-ounce cup, and a 1-ounce espresso is 40 mg ([MedlinePlus](https://medlineplus.gov/ency/article/002445.htm)).
3. Black or green tea is 60 to 100 mg per 16-ounce cup; a 12-ounce cola is about 45 mg ([MedlinePlus](https://medlineplus.gov/ency/article/002445.htm)).
4. Dark or semisweet chocolate is 10 mg an ounce; unsweetened baking chocolate is 58 mg ([MedlinePlus](https://medlineplus.gov/ency/article/002445.htm)).
5. Add it up and set the total next to 200 mg ([MedlinePlus](https://medlineplus.gov/pregnancyandnutrition.html)). That number is your line, not your verdict.

**Make it work:** Fill your usual mug with water and pour it into a measuring cup, once. The figures above are per 6 or 16 ounces, and most mugs hold more than they look.

## Watch for

- **Normal:** a headache now and then; headache, fatigue, and breast tenderness can all show up before a missed period ([OWH](https://womenshealth.gov/pregnancy/you-get-pregnant/knowing-if-you-are-pregnant)). **Call your provider** for a headache that won't go away or gets worse over time, or one that comes with changes in your vision ([CDC](https://www.cdc.gov/hearher/maternal-warning-signs/index.html)).
- **Normal:** tiredness that arrives early; fatigue can appear as soon as 1 week after conception, linked to rising progesterone and more blood flow ([NICHD](https://www.nichd.nih.gov/health/topics/pregnancy/conditioninfo/signs)). **Call your provider** before taking anything to sleep, including over-the-counter medicines and herbal products ([MedlinePlus](https://medlineplus.gov/ency/patientinstructions/000559.htm)).
- **Normal:** more trips to the bathroom; hCG, made in the first few weeks, increases blood flow to the pelvic region ([NICHD](https://www.nichd.nih.gov/health/topics/pregnancy/conditioninfo/signs)). **Call your provider** if it hurts to pee or your urine changes color or smell, which can signal a bladder infection ([MedlinePlus](https://medlineplus.gov/ency/patientinstructions/000583.htm)).

## For you

Swap, don't quit. One or two small cups sits inside the line ([MedlinePlus](https://medlineplus.gov/ency/article/002445.htm)), so the job is to move the third cup to decaf, not to give up the one you love. Keep the ritual, the mug, the ten minutes by the window; change what's in it.

If you're the partner: the easiest way to make a smaller coffee normal in the house is to pour yourself one too. And if you're the one who makes the morning pot, buy a good decaf, so the swap doesn't taste like a punishment.

## Sources

- National Institute of Child Health and Human Development. "About Pregnancy." National Institutes of Health. https://www.nichd.nih.gov/health/topics/pregnancy/conditioninfo
- MedlinePlus. "Fetal development." Medical Encyclopedia, National Library of Medicine. https://medlineplus.gov/ency/article/002398.htm
- MedlinePlus. "Pregnancy and Nutrition." National Library of Medicine. https://medlineplus.gov/pregnancyandnutrition.html
- MedlinePlus. "Caffeine in the diet." Medical Encyclopedia, National Library of Medicine. https://medlineplus.gov/ency/article/002445.htm
- Office on Women's Health. "Staying healthy and safe." U.S. Department of Health and Human Services. https://womenshealth.gov/pregnancy/youre-pregnant-now-what/staying-healthy-and-safe
- MedlinePlus. "Problems sleeping during pregnancy." National Library of Medicine. https://medlineplus.gov/ency/patientinstructions/000559.htm
- Office on Women's Health. "Knowing if you are pregnant." U.S. Department of Health and Human Services. https://womenshealth.gov/pregnancy/you-get-pregnant/knowing-if-you-are-pregnant
- Centers for Disease Control and Prevention. "Urgent Maternal Warning Signs and Symptoms." HEAR HER campaign, 2024. https://www.cdc.gov/hearher/maternal-warning-signs/index.html
- National Institute of Child Health and Human Development. "What are some common signs of pregnancy?" National Institutes of Health. https://www.nichd.nih.gov/health/topics/pregnancy/conditioninfo/signs
- MedlinePlus. "Common symptoms during pregnancy." National Library of Medicine. https://medlineplus.gov/ency/patientinstructions/000583.htm