Penicillin is one of the most commonly prescribed antibiotics. It is part of a family of antibiotics known as beta lactams, and there are many individual medications in this family: Penicillin G, nafcillin, oxacillin and dicloxacillin, ampicillin, amoxicillin, carbenicillin, ticarcillin, and piperacillin.
Vitamins and minerals. Vitamin B6 is essential to forming a good corpus luteum, which is your big progesterone producer. Magnesium is important to break down excess estrogens, so making sure you have good levels of magnesium can help the balance of estrogen and progesterone. Vitamin C is proven to help raise progesterone levels. Keep in mind that the first way to get in the nutrition you need is through good food, not supplements.
Levels of progesterone will be naturally higher during pregnancies that involve multiples (twins, triplets, etc.) than those in which there is only one fetus. Taking estrogen and progesterone supplements can affect results. Men will also have small amounts of progesterone in their blood.