I've not grown or used this herb myself, so I looked it up and read that it shouldn't be used during pregnancy, so perhaps an alternative pot herb might be preferable so you needn't worry who you're feeding your food to.

The roots are medicinal, that is the part that has the uterine stimulant. The leaves are a kind of amaranth. I certainly don't feed unknown persons.... do you? The root has some interesting anti gum disease properties.

The roots are medicinal, that is the part that has the uterine stimulant. The leaves are eaten as greens like spinach as they are in the amaranth family, so they are not the medicinal part of the plant, though the juice is described as helpful for asthma. The root has some interesting anti gum disease properties. There are a lot of herbs that are not suitable for pregnant women.

Here is a link that might be useful: pfaf