The Second Trimester Begins – What to Expect in Month 4

Introduction

You made it through the first trimester—congratulations! 🎉 Month 4 marks the beginning of the second trimester, often called the “honeymoon phase” of pregnancy. Many early symptoms like nausea start to fade, and you might even feel a surge of energy. Meanwhile, your baby is growing rapidly! In this guide, inspired by What to Expect When You’re Expecting, we’ll explore what changes to expect in this exciting stage.


What’s Happening to Your Baby in Month 4?

By the end of Week 16, your baby is about the size of an avocado 🥑 and is undergoing major developments:

👶 Facial expressions! Your baby can frown, squint, and even make sucking motions.
💪 Muscles are developing. Baby is moving more, though you might not feel it just yet.
🦴 Bones are hardening. Your baby’s skeleton is getting stronger.
👂 Ears are forming. Your baby might even start hearing muffled sounds.
🩸 Circulatory system is functioning. Baby’s heart is pumping about 25 quarts of blood daily!


How Your Body is Changing in Month 4

Many moms-to-be find relief in the second trimester as morning sickness fades and energy returns. But here are some common changes you might notice:

✔️ Your baby bump is becoming more visible. You may start showing if you haven’t already!
✔️ Increased energy. Many women feel much better in this trimester.
✔️ Round ligament pain. As your uterus expands, you may feel mild stretching or aches in your lower belly.
✔️ Appetite increase. With nausea mostly gone, food cravings may kick in!
✔️ Stronger hair & nails. Thanks to pregnancy hormones, your hair may look shinier and your nails might grow faster.


Important To-Dos in Month 4

Start planning for maternity clothes—your belly is growing!
Schedule your next prenatal checkup. Around 16 weeks, your doctor will monitor baby’s growth.
Consider genetic screening tests if recommended by your doctor.
Stay active. Walking and prenatal yoga help with circulation and energy levels.
Eat nutrient-rich foods. Focus on iron and protein for your growing baby.


Fun Fact: When Will I Feel My Baby Move?

Some moms start feeling flutters (quickening) this month, but most first-time moms feel baby’s movements between 18-22 weeks.


Final Thoughts

Month 4 is an exciting time as your pregnancy becomes more noticeable and many early discomforts fade. Enjoy this phase—your baby is growing fast, and you’re getting closer to feeling those first kicks!