Ideally, you would begin taking prenatal vitamins a few months before you wanted to try to conceive. Once you stopped using birth control and began to try in earnest would be beneficial as well. However, about half of all pregnancies are unplanned.
Flakka, which is also called gravel in some parts of the country, is the street name for a chemical called alpha-PVP, or alpha-pyrrolidinovalerophenone. The chemical is a synthetic cathinone, a category that includes the mild natural stimulant khat, which people in Somalia and the Middle East have chewed for centuries.
It may also be distinguished from bath salts and sold under a different name: flakka, a name used in Florida, or gravel in other parts of the U.S. It is reportedly available as cheaply as US$5 per dose, whereas wholesale price in Chinese markets is about US$1.65 per gram.