4 months pregnant
By Pregora Editorial Team · Updated 2026-04-26 · 3 min read
If you're 4 months pregnant, you are approximately in weeks 14–18. This puts you in the second trimester. Here's a brief overview of what to expect during your 4th month.
Quick answer
Weeks 14–18
4 months pregnant covers approximately these weeks. Second trimester.
What happens during month 4
You may start feeling first movements (quickening). Energy returns for many.
How months and weeks align
Pregnancy is counted in 40 weeks (~9 months) — but those 40 weeks don't divide evenly into 9 calendar months. Each pregnancy 'month' covers about 4.345 weeks. So month 4 = weeks 14–18 approximately.
Related calculators
Medical disclaimer: This article is for general information only. Always consult your healthcare provider about your individual pregnancy.
Related tools
Due Date Calculator
Estimate your pregnancy due date from last period, conception, ultrasound, or a known due date.
Pregnancy Week Calculator
How far along am I? Find your current week, trimester, and major pregnancy milestones.
Ovulation Calculator
Find your fertile window, peak ovulation day, and next 6 ovulation dates from your last period.
Conception Calculator
Find when you most likely conceived from your last period, due date, or ultrasound.
Reverse Due Date Calculator
Already have a due date? Work backward to find conception date, LMP, and pregnancy timeline.
IVF Due Date Calculator
Calculate due date from embryo transfer — Day 3, Day 5, Day 6 transfers and FET cycles.
FET Due Date Calculator
Frozen embryo transfer due date — Day 3, Day 5, Day 6 FET cycles using fertility-clinic math.
Trimester Calculator
What trimester am I in? Find your current trimester (1st, 2nd, or 3rd) and trimester boundaries.
Implantation Calculator
When does implantation happen? Find your implantation window (6-12 days after conception) and earliest test date.
Pregnancy Test Calculator
When can I take a pregnancy test? Earliest reliable date for standard, early-detection, and blood tests.
Chinese Gender Predictor
Predict baby gender using the traditional 24×12 lunar age chart. For entertainment only — not science.
Pregnancy Weight Gain Calculator
Healthy weight-gain range based on pre-pregnancy BMI and current week, using IOM guidelines.