First trimester · roughly month 3 · about 27 weeks to go

13 weeks pregnant

Everything Hello Belly has for week 13 — how your baby is developing, what your body is doing, and the small things that are easier to know in advance.

Your baby at 13 weeks

13–14 weeks

Your baby does not look like an alien anymore: look, it's a man, but very small. He has already formed all the internal organs, and the heart is pumping 23 liters of blood per day. His vocal organs are forming (oh, soon you will not be pleased about that...)

He also became more sensitive: responds to cold, light, sounds from outside. If you eat something sweet, he swallows the amniotic fluid very quickly and actively. The kid swims in his "house" pushing away from the walls of the uterus. Doctors say that it is impossible to feel it at such an early date, BUT WE FEEL EVERYTHING! Yep? ;)

Tell the baby how you love him, how was your day and what you think about the new film by Guy Ritchie: he is unlikely to understand, but he will definitely hear and rejoice: "Mommy loves me, Mommy talks to me!!"

This week's open tip

Read it in full right here — no account needed.

Her Own Ninja Way
Last week of the first trimester. The baby is already about the size of your fist, with a third of the baby’s body still made up of her head, and she still looks like a little alien.
Read the full tip →