Can you get pregnant while taking danazol? If so, does it have any ill effects on the fetus?

Yes. Special precautions should be taken as if taken during pregnancy serious fetal deformity could occur.
Danazol. 1st, why r u on this? Do u have hereditary angioedema? If so, you need to sit down with ur allergist to inform them of pregnancy desire and consider alternative therapy. You also need to discuss this at length with your ob/gyn specialist before proceeding further. This is not a medication to play around with while getting pregnant.