Here we go, it is week 21! Your baby is now as heavy as a grapefruit but will continue to grow.

By this week, your baby has now developed pretty pairs of eyebrows and eyelashes, while the hair on the scalp becomes more visible. This is perhaps the most wonderful milestone this week, as it makes your baby look even more real.

The fingernails now completely cover the tips of your baby's fingers, but they’re still not long enough. Your baby’s circulatory system is fully functional by now.

Meanwhile, you may feel the hiccups from your baby beginning this week, but don’t worry if you don’t recognize them just yet. Generally, they will feel like repetitive flutters in your abdomen that may last for a few minutes. When your baby grows bigger, the hiccups will feel stronger.

Wondering if your baby can see by this point? The eyes are still closed this week, but they are rather sensitive to light, and may look away when you flash bright light in your abdomen!

Sleeping patterns start to form at this week, too, as your child learns to sleep a whopping 20 hours a day!