My face has been extremely dry, now that I'm pregnant should I be using a different face wash?

Moisturizer. The hormones of pregnancy can make skin care more challenging but no special changes are needed. Just use a good face wash and a moisturizer.
Wash less. Every time we wash our skin, we strip it of essential oils that are secreted to protect our skin. Definitely switch your facial wash and even consider washing less. Use a moisturizer as well.