Cookies on NestBub
We use strictly-necessary cookies to keep you signed in and protect the site. With your permission we also use analytics cookies to measure usage and marketing cookies for campaign attribution. You can change your choice any time on our cookie preferences page or read the full Privacy Policy.
Guides and registry adviceApril 12, 2026
NestBub Editorial
Guide notes
The second trimester is often when pregnancy starts to feel more visible, more discussable, and more practical. It is the middle stretch of pregnancy, usually described as starting around week 13 or 14 and running through about week 26 or 27, and it often includes the anatomy scan, clearer baby movements, regular checkups, and the first serious planning conversations.
6 min read
Dates can vary slightly by resource, so do not worry if an app, hospital booklet, or clinician uses a different boundary by a week. What matters is your own gestation, your care plan, and the appointments your midwife, GP, or obstetrician recommends for your pregnancy.
Many first-trimester symptoms begin to settle during this stage, but that does not mean the second trimester is automatically easy. Nausea may ease, energy may improve, and appetite may return, while round-ligament pain, backache, headaches, constipation, reflux, changing sleep, skin stretching, and a growing bump can bring a new set of practical annoyances.
Your baby grows quickly through the second trimester. Early movements may feel like flutters, bubbles, swishes, or tiny taps, and many parents start noticing them sometime between 16 and 24 weeks. First pregnancies, placenta position, body shape, and daily busyness can affect when you notice movement, so ask your care team what is expected for you.
The anatomy or morphology scan is one of the main second-trimester milestones. It is usually offered around 18 to 22 weeks and checks your baby's growth, organs, placenta position, amniotic fluid, cervix length, and whether anything needs follow-up. It can be joyful, nerve-racking, or both, so plan who you want with you and how you will receive results.
The scan is useful, but it cannot answer every question. It looks at structure and growth, not every genetic condition, future health issue, or birth outcome. If the sonographer needs more images, your care team may arrange a repeat scan or extra review. That does not automatically mean something is wrong; it often means the baby, placenta, or timing made a view difficult.
Screening decisions may continue in this trimester. Some parents will already have had NIPT or first-trimester screening, while others may be offered second-trimester maternal serum screening or diagnostic testing because of results, dates, cost, or personal choice. Ask what each test can and cannot tell you, whether there are out-of-pocket costs, and what the next step would be after any result.
This is also a good time to ask about vaccines, supplements, dental care, exercise, work adjustments, travel, and who to call after hours. Staying active is usually helpful when your clinician says it is safe, but avoid activities with a high fall risk, heavy impact, overheating, or lying flat on your back for long stretches once your provider advises against it.
Practical planning becomes easier in the second trimester because you usually know more than you did at the start. Think through parental leave dates, employer conversations, antenatal classes, care provider fees, private health or hospital paperwork, transport to appointments, sibling or pet care, and the few larger items that need longer lead times.
Keep exploring
Browse public registries for gifting inspiration, work through the NestBub checklist, or head back to the home page to start one of your own.
