Try making your own with peanut butter, nuts, avocado or other protein boosters.yogurt, milk or almond milk as protein sources. I wouldn't buy protein powders as you don't actually know what is in them besides what is listed like arsenic, lead, mercury.
leafy greens are good sources of folate, a key nutrient that helps prevent neural tube defects. Making shakes with fruits and vegetables can also help you reach your dietary fiber intake goals during pregnancy.