How long do you have to wait before for the radioactive material leave body can close contact with pregnant woman?

There is no specific waiting period after close contact with pregnant women for radioactive material to leave the body. The amount of time it takes for radioactive material to leave the body depends on the type of material, the amount of material, and the individual's metabolism.

However, it is important to avoid close contact with pregnant women if you have been exposed to radioactive material. Radioactive material can harm the developing fetus, particularly in the early stages of pregnancy. If you are concerned about radiation exposure, you should consult with a doctor.