Oats are full of fibre, B vitamins, iron and a host of other minerals. Along with other complex carbs, they're also packed with fibre (helpful if you're dealing with constipation). Fill your breakfast bowl with them, but don't stop there — add oats to pancakes, muffins, cakes, cookies, or even meatloaf. Aim to eat them along with a variety of other whole grains (whole corn, rice, quinoa, wheat and barley) to up your dose of a slew of baby-building vitamins and minerals.
Tip: Another whole grain that provides an easy way to up your intake: Air-popped popcorn. Its starchiness can help quell nausea, too!