My grandaugter is pregnant, about 8 weeks, but has had 4 miscarriages. She is only 21, and the last was an e topical and her tube ruptured, and she lost the tube. Her husband is in the military, and one doctor said her level for progesterone was normal, and another gave her supplements of 100mg, x2 daily up to 12 weeks. Can this harm the baby, and was this a good move on the doctors part to help sustain the baby? Help!