Second Trimester: What to Expect

If the first trimester is about survival, the second — weeks 14 through 27 — is about momentum. For most people the worst symptoms lift, energy returns, and pregnancy starts to feel real with those first unmistakable kicks. It’s also a trimester of important screenings. This guide covers what to expect physically, the key appointments, and how to make the most of the "honeymoon" window.

Why this trimester feels better

As the placenta matures and hormone levels even out, the nausea and bone-deep fatigue of early pregnancy usually recede. Appetite returns, sleep often improves (at least until the bump grows), and many people feel genuinely good. The bump becomes visible, but it’s typically not yet large enough to be uncomfortable — making this the easiest stretch to stay active and get things done.

Feeling your baby move

One of pregnancy’s milestones arrives now: quickening, the first felt movements. First-timers usually notice it between 18 and 22 weeks; experienced parents may feel it closer to 16. It starts as flutters or bubbles — easy to mistake for gas — and grows into distinct kicks and rolls. Feeling regular movement is reassuring, and your provider will guide you on what patterns to watch for as you approach the third trimester.

Your baby’s development

Your baby grows from about the size of a lemon at 14 weeks to roughly a head of cauliflower by 27 weeks. They develop sleep-wake cycles, can hear your voice, practice swallowing and breathing motions, grow hair and eyebrows, and lay down fat. By the end of the second trimester, a baby has a real (though small) chance of survival with intensive care if born early — a reminder of how far development has come.

Key appointments and screenings

Two milestones anchor this trimester. The anatomy scan (around 18–22 weeks) is a detailed ultrasound checking organs, growth, placenta, and fluid — and often reveals sex if you wish to know. The glucose screening (around 24–28 weeks) tests for gestational diabetes. You’ll also continue routine checkups roughly every four weeks, monitoring blood pressure, weight, and the baby’s heartbeat and growth.

Make the most of the energy

This is the practical-planning sweet spot. Research and budget the big-ticket gear (car seat, stroller, crib), build your registry, set up the nursery, and consider a childbirth education class. It’s also a good time for any travel ("babymoon"), to start side-sleeping as the bump grows, and to keep up provider-approved exercise like walking, swimming, or prenatal yoga. Getting organized now means less scramble in the third trimester.

Symptoms to expect (and watch)

Comfortable doesn’t mean symptom-free: round-ligament pain, mild swelling, nasal congestion, leg cramps, heartburn, and Braxton Hicks practice contractions are common. Report anything concerning — severe headaches, vision changes, sudden swelling, decreased movement after you’ve been feeling it regularly, bleeding, or signs of preterm labor — to your provider promptly.

The bottom line

The second trimester is your window of relative comfort and energy: expect symptoms to ease, your baby’s first movements between 16 and 22 weeks, and two key screenings (anatomy scan and glucose test). Use the good weeks to plan, register, and prepare — the third trimester will be here soon.