Week 13.

Fetal development in pregnancy week 13: fetus in third month

This is your final week in the first trimester and your little weed continues to grow and grow and grow. Of the three trimesters, this one has been the most important for your little one’s development. Assuming you’ve carefully adopted a healthy diet, continue to exercise and get ample rest, your little one is set up perfectly for even more growth and development in tri-two! Way to go! He or she now weighs about 2.5 ounces and is roughly 3.5 inches in length. Little hairs, known as lanugo, will start to cover their body this week, as their sense of taste and smell are further refined. Their cozy little amniotic sac is also increasing in size and mass as it continues to fill with more fluid.

And how's mom doing? Congratulations on a successful first trimester! A lot has happened (and there’s a lot more to come). You should be proud of your hard work and sacrifice. Giving up lattes, soda, and wine is not easy. Even if you snuck in a few of these goodies over the past 13 weeks, don’t dwell on it—there’s a lot to look forward to! Besides, now is the perfect time to rededicate yourself if you have had a few lapses. Remember, every day and decision is an opportunity to improve your eating and exercise habits—your baby and your body will thank you in the long run.

If you’re the planning type, you can celebrate the beginning of your next trimester by purchasing some choice maternity clothing to fit your elegantly evolving new shape. The good news is some fashion designers are realizing that being pregnant doesn’t mean you can’t look sharp, sexy, sporty, or whatever your particular style might be. Cruise the online stores for a preview of the range of fashion out there for pregnant women—even if the local shops are still stuck in the nineties, you can always hit up some chi-chi online store based out of NYC! If you’d rather wait a few more weeks (until you really start to show) before making any purchases, then get ready to dig out your sweat pants, over-sized t-shirts, and any other comfy loose fitting clothes you’ve got at your disposal. At the very least, just unbutton that top button on those pants that still “almost fit”. Come on, you’re pregnant! This is definitely not the time to suffer for fashion.