Pregnancy
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Second trimester: weeks 14 to 27

Many people feel their best in the second trimester. Mia explains the changes, the scan and what to watch for.

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Second trimester

In short

01

More energy

Nausea often eases and energy returns for many people.

02

The anomaly scan

Usually offered at 18 to 21 weeks. It checks how baby is growing.

03

First movements

You may feel flutters from around 16 to 24 weeks.

04

Common aches

Back, hip and round ligament pain are common. Gentle movement and rest can help.

Feeling more like yourself

For many people, weeks 14 to 27 feel easier. Nausea and tiredness often fade, and your energy comes back. It can be a good time to plan, travel or start antenatal classes.

Your bump begins to show, and your body keeps changing. Skin may darken in places and stretch marks can appear. Both are common and often fade after birth.

Your baby is growing

Your baby grows from about 8 cm to around 35 cm long in these weeks. They can hear sounds, suck their thumb and move a lot, even before you feel it.

Most people feel the first movements between weeks 16 and 24. At first they feel like flutters or bubbles. In a first pregnancy you may notice them later.

The anomaly scan

The mid-pregnancy scan, offered at 18 to 21 weeks, looks closely at your baby’s body, organs and growth. It also checks where the placenta is.

You can usually ask to find out the sex at this scan if the hospital offers it. Bring someone with you if you would like support.

Common aches and how to ease them

Back pain, round ligament pain (a sharp pull low on the sides of the bump), heartburn and leg cramps are common. Good posture, gentle stretching, warm baths and smaller meals can help.

Pelvic girdle pain, felt at the front or back of the pelvis, is common too. It is not harmful to your baby, but tell your midwife. A physiotherapist can help a lot.

Good things to do now

Keep moving most days. Start pelvic floor exercises if you have not already. Book antenatal classes, and start thinking about where you want to give birth.

From week 28 you will go to sleep on your side, so this is a good time to find a comfortable pillow set-up.

Based on NHS guidance on the second trimester and the NHS fetal anomaly screening programme. Mia teaches. Your midwife knows you best.

Sources: NHS: Weeks 13 to 27 · NHS fetal anomaly screening programme · NHS: Pelvic pain in pregnancy

Good to know

Can I travel in the second trimester?

Often yes, and many find it the easiest time. Check with your midwife first.

Should I sleep on my side?

From the third trimester, going to sleep on your side is advised. Do not worry if you wake on your back.

When will I feel my baby kick?

Usually between weeks 16 and 24. It may be later in a first pregnancy.

Is it safe to travel?

Often yes, and many find this the easiest time. Check with your midwife and your travel insurance.

Can I have sex?

Yes, for most people. Your midwife will tell you if there is a reason not to.

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