Growing oh-so fast and instantly all you can think about is your LEGO-sized (or fig-sized if you please) bun in the oven. This week, your little one is engaging in some serious acrobatic kicking and stretching inside your womb. It will still be a few more weeks, however, before any of this moving around business is felt. Many expectant moms will feel these signs of movement around week 16.

Your baby's skin, still paper thin and transparent, is forming a protective barrier around the body. Tiny fingers and toes have begun to separate into unique extremities, and cute little fists are beginning to open and close.

The first signs of teeny tiny teeth will also appear this week, as tiny tooth buds begin to form under the gums. Your little one may even have his or her first case of the hiccups soon, as the diaphragm begins to develop.

This week, there's a great chance your morning sickness and fatigue are finally subsiding. If not, they should within the next couple of weeks. And don't worry if you haven't gained much weight yet. Most women only gain between zero to five pounds throughout their entire first trimester; but as your nausea continues to wane in the coming weeks, your healthy appetite will return! Just know, you'll gain plenty of weight in your second trimester - about a pound a week!

As your appetite returns, it's important to watch what you eat. Below you will find a list of foods to avoid during pregnancy.

• Unpasteurized cheese and milk
• Cold deli meats (cold cuts)
• Raw or undercooked fish (including uncooked, smoked or pickled fish, or shellfish)
• Shark, swordfish, king mackerel, and golden or white snapper (aka tilefish)
• Refrigerated pate
• Unwashed vegetables

Seafood is a good source of protein and the primary source of omega-3 fatty acids, which support the development of your baby's vision and brain. And luckily, there are many fish considered safe to eat during pregnancy, including shrimp, crab, cod, clams, scallops, canned LIGHT tuna, canned salmon, pollock, and catfish. However, you should not consume more than 12 ounces of commercially caught fish per week, with no more than six ounces of this being from albacore (white) tuna or tuna steaks. Just like shark or king mackerel, the mercury content in albacore tuna, and tuna steaks, is high enough to potentially cause harm to your child's developing brain.