What are the risks of drinking aloe vera juice while being pregnant? What kind of side effects will it do to the baby?

Stop juice. It is sometimes very hard to know what the side effects are of medications and natural remedies on a developing fetus. In my opinion, less is more. Since aloe vera juice concoctions probably are quite varied in what they contain and are not controlled, i would not take the risk of hurting my baby. Since you don't really need aloe vera juice, it is safest to minimize exposure to your baby.