First trimester of pregnancy week by week Pregnancy Articles Article Week 03 You’re at the very beginning of the journey. You can’t see anything yet, but that doesn’t mean there’s isn’t a whole lot going on. Pregnancy Articles Article Week 04 Almost one month already! There are lots of things happening inside you this week. Pregnancy Articles Article Week 05 Though only around the size of a pea, your baby is growing by leaps and bounds. Relatively speaking! Read more about this week. Pregnancy Articles Article Week 06 Your baby’s growth is in overdrive right about now. So many exciting developments on such a tiny little being! Read more about this week. Pregnancy Articles Article Week 07 Your baby is already a pretty impressive 15 mm long. Though you won’t feel it yet, she’s on the move. Read more about this week. Pregnancy Articles Article Week 08 About the size of a grape, your little one measures about 15 mm, but in a sitting position now. In other words, from his coccyx to the crown of his head. Learn more about this week. Pregnancy Articles Article Week 09 Two hearts beat as one, as the song says. In actual fact, your baby’s heart is beating just fine on its own. Read more about this week. Pregnancy Articles Article Week 10 You are already at week 10 of your pregnancy. Still another 29 weeks to go before you get to meet your little love. Learn more about what’s going on this week. Pregnancy Articles Article Week 11 If you could look inside, you’d see thin little hairs developing on your baby’s eyebrows and above her lip. Pregnancy Articles Article Week 12 You’re coming to the end of your first trimester. Congratulations! Read more about this week. Pregnancy Articles Article Week 13 The start of your second trimester is the start of lots of new development milestones for your baby. Read more about this week. See all Next trimester