How to Track Your Pregnancy Week by Week
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How Pregnancy Weeks Are Counted
Pregnancy is counted from the first day of your last menstrual period (LMP), not conception. This means you're technically 2 weeks pregnant when conception occurs. Full term is 40 weeks from LMP.
Calculating Your Due Date
Due date (EDD) = LMP + 280 days (Naegele's rule). If you know your conception date, add 266 days. Ultrasound dating overrides LMP calculations if there's a discrepancy of more than 5–7 days.
The Three Trimesters
First trimester (Weeks 1–12): Organ development, highest miscarriage risk. Second trimester (Weeks 13–27): Growth accelerates, movement begins, energy improves. Third trimester (Weeks 28–40): Rapid weight gain, lung maturation, preparation for birth.
Baby Size Milestones by Week
Week 4: Poppy seed (0.1 cm). Week 8: Raspberry (1.6 cm, 1g). Week 12: Lime (5.4 cm, 14g). Week 20: Banana (25 cm, 300g). Week 28: Eggplant (37.6 cm, 1kg). Week 36: Honeydew (47.4 cm, 2.6kg). Week 40: Watermelon (51 cm, 3.5kg).
Key Prenatal Appointments
8–10 weeks: First ultrasound (heartbeat confirmed, dating). 11–14 weeks: Nuchal translucency scan (chromosomal screening). 18–20 weeks: Anatomy scan (gender possible, organ checks). 24–28 weeks: Glucose tolerance test (gestational diabetes). 36+ weeks: Weekly checks, Group B strep test.
Symptoms to Track Each Trimester
T1: Nausea, fatigue, breast tenderness, frequent urination. T2: Round ligament pain, heartburn, fetal movement. T3: Braxton Hicks contractions, back pain, shortness of breath. Track kick counts from week 28: 10 kicks within 2 hours.
The Real Reason People Search For Track Your Pregnancy Week by Week
Most people search for how to track your pregnancy week by week because a small task is blocking a bigger outcome: sending a file, checking a number, cleaning up content, preparing a school or office deliverable, or fixing something quickly on mobile. The useful answer is not theory alone. The useful answer is a clear path from the problem to a working result. After reading the main idea, use Free Bmi Kit with your own input so the article becomes a finished task, not just saved advice.
A 60-Second Workflow You Can Try Now
Start with one realistic example instead of an abstract sample. Confirm the input labels, enter the values or upload the file, review the preview or result, then use copy, export, download, reset, or share only after the output makes sense. This fast workflow is what turns search traffic into real product usage: the reader arrives with a task, sees the exact next step, and can complete it immediately in the browser.
Where This Saves Time In Real Life
Free Bmi Kit helps when the alternative is repetitive manual work, a spreadsheet formula you do not fully trust, or installing software for a one-time task. Students can check assignments faster, office users can finish routine work without context switching, creators can prepare assets quickly, and mobile users can complete a job without waiting to get back to a desktop. The benefit is practical: fewer steps between the question and the usable output.
Mistakes That Make Good Tools Look Wrong
Before trusting the output, check whether the tool expects plain text, numbers, dates, units, files, or a specific format. Recalculate once after changing the main input, compare the result with a simple estimate, and read the labels around the output. Many bad results come from pasted values in the wrong field, hidden units, stale browser state, or rounding too early. The tool should make the work easier, but the final check still belongs to the user.
The Best Next Step
If this article matched your problem, do not leave the idea in the article. Open Free Bmi Kit, try the workflow with one real example, and keep the result only after it passes your own quick check. That is the standard every YantraKosha blog should follow: a useful hook, a real use case, a clear workflow, and a relevant next action.
Quick Reference For Repeat Use
Bookmark Free Bmi Kit so the next time the same task comes up you do not have to search again. Save the input format that worked for you, keep one tested example nearby, and treat the tool as a small reliable step inside your larger workflow. Public tools work best when they fit into a habit, not when they are rediscovered every week from a fresh search result.
Frequently Asked Questions
Try the workflow
Use FreeBMIKit to finish this workflow
BMI, Pregnancy, Ovulation & Sleep Calculator Start from the article's use case, open the matching tool, and turn the idea into a usable result.