It’s important to remember that every baby grows at their own pace. Some babies experience growth spurts from this stage, while others develop gradually. Either way, your little one is following an incredible journey of development!
Baby’s Development at 13 Weeks
At this stage, your baby’s body is undergoing some amazing changes:
- Bones forming – Tiny bones in their arms and legs are developing, and they’re beginning to move in quick, jerky motions. Don’t be surprised if their thumb finds its way into their mouth soon.
- Digestive system – Their intestines, which were developing inside the umbilical cord, have now moved into the abdomen where they belong.
- Placenta growth – The placenta continues to expand to provide nourishment and protection. By birth, it will weigh about 1–2 pounds.
- Vocal cords – Your baby’s vocal cords are starting to form, preparing them for their very first cry.
How You Might Be Feeling at 13 Weeks
You’re almost at the end of your first trimester, congratulations! Many women start to feel better around now as nausea and fatigue begin to fade. The second trimester is often called the most comfortable phase of pregnancy
That said, you may still notice:
- Bloating and constipation
- Headaches
- Breast tenderness
- Lingering nausea or fatigue (sometimes lasting into the fourth or fifth month)
Vaginal Discharge in the Second Trimester
Increased vaginal discharge, known as leukorrhoea, is very common during pregnancy. It is usually thin, milky white, mild-smelling (or odourless) and completely normal.
Leukorrhoea helps keep the birth canal healthy by preventing infections and maintaining a balance of bacteria. To stay comfortable:
- Wear breathable cotton underwear
- Use panty liners if needed
- Avoid tampons and douching
If the discharge changes in colour, smell, or texture, check with your doctor to rule out infection.
Sex and Pregnancy at 13 Weeks
You may be wondering if your feelings about sex are normal as your body changes. The truth is, there’s no right or wrong way to feel. Some women notice an increased libido, while others feel less interested. Both are perfectly normal and your desires may shift throughout pregnancy.
The key is to listen to your body. Enjoy intimacy if you feel comfortable, or simply prioritise rest and relaxation if you don’t.
What If You’re Having Twins?
If your belly feels larger than expected at 13 weeks, you might wonder if you’re carrying twins. While possible, there are many other explanations, such as:
- A slightly miscalculated due date
- A naturally larger baby
- Normal pregnancy bloating
- Dietary changes increasing weight gain
The only way to confirm twins is through an ultrasound scan, so check in with your healthcare provider at your next appointment.
Tips for You at 13 Weeks
- Embrace your sex drive – If it’s on the rise, enjoy the benefits. If not, that’s normal too.
- Track your symptoms – Keep notes on changes in energy, sleep or discomfort to discuss with your doctor.
- Choose pregnancy-safe foods – When dining out, avoid raw fish, unpasteurised dairy and undercooked meats.
- Expect urine tests at check-ups – These check for conditions like UTIs, preeclampsia and gestational diabetes
- Monitor skin changes – New moles or pigmentation shifts are common but always worth mentioning to your doctor
- Wear cotton underwear – Keeps you comfortable and reduces irritation from increased discharge.
- Boost your iron intake – Include iron-rich foods such as lean beef, leafy greens, tofu, dried fruits and potatoes with skin. Your doctor may recommend iron supplements later in pregnancy.
FAQs About Being 13 Weeks Pregnant
How big is my baby at 13 weeks?
Your baby is about the size of a lemon, measuring around 7–8 cm in length and weighing about 23 grams.
What symptoms are common at 13 weeks?
You may still experience bloating, constipation or breast tenderness but nausea often begins to ease around this time.
Is it safe to have sex at 13 weeks pregnant?
Yes, unless advised otherwise by your doctor. Sexual activity is usually safe and may even boost mood and pelvic health.
Could I be having twins if I look bigger?
Possibly, but bump size isn’t always accurate. Only an ultrasound can confirm twins.
What foods should I avoid at 13 weeks?
Avoid raw fish, undercooked meat, unpasteurised cheese or dairy and foods with a high risk of foodborne illness