What are the earliest signs that indicate pregnancy?

Early pregnancy signs include missed periods, nausea, breast tenderness, and fatigue. As pregnancy progresses, you'll notice fetal movements and changes in your body that indicate healthy baby development.

When do babies start moving during pregnancy?

Baby movements become noticeable as their nervous system develops. Expect 10-15 periods of daily activity alternating with deep sleep phases averaging 18 hours per day.

How can I tell if my baby is developing normally?

Normal development includes coordinated movements, regular sleep-wake cycles, and proper growth visible on ultrasounds. Your baby's skin becomes smoother and they develop taste buds during this time.

Is it normal for twins to be different sizes?

Yes, size differences up to 20% between twins is completely normal. Each baby develops at their own pace, similar to how bananas come in different sizes naturally.

Early Signs of Pregnancy: Baby Development Guide 2026

Baby keeps growing

Due to the accumulation of subcutaneous fatty tissue, the baby’s skin becomes smoother and acquires a soft pink hue, their body is also better at retaining internal heat.

As their brain develops, the baby’s movements become even more refined and coordinated [1]. They can now freely turn over, settling in the uterus, then turn upside down and even completely across.

The baby’s nervous system activity is also developing. Periods of activity — usually 10 to 15 per day — are alternating with deep sleep [2]. During wakefulness, the baby’s heartbeat becomes more frequent, respiratory movements increase and short-term muscle contractions are noticeable. But during deep sleep, which averages about 18 hours a day, activity decreases.

This week, taste buds form on the baby’s tongue, and soon they will be able to distinguish between sweet and salty, sour and bitter [1].

If you are expecting twins

We can say that each of the twins is now the size of an average banana. But children, like bananas, come in different sizes! Almost certainly one of the babies is slightly larger than the other. If the difference does not exceed 20%, there is no reason to worry.

What can be seen on ultrasound

The baby is lying on their back and has taken a finger from the left hand to the mouth. Their position indicates that they are calm and comfortable.

The right hand is resting alongside the body, and the palm of the left hand and forearm are visible. The outlines of the head and contour of the forehead are also clear. Along with their tiny mouth and eyes, which are hidden under the eyelids.