Progesterone is a hormone released by the corpus luteum in the ovary. It plays important roles in the menstrual cycle and in maintaining the early stages of pregnancy. It may also be involved in the growth of certain cancers.
I've been following various people's posts about the GRE for 10 months now. Some people don't study at all for the GRE, some study for a weekend, the average is about 2 to 3 months, and some study for a year or more.
Your official scores for each of the three sections will be available 10-15 days after you take the GRE, and the schools you sent score reports to will also receive your scores at this time. If you took the paper-based GRE or a GRE Subject Test, it will take up to five weeks for you and the schools you indicated to receive your official scores.