hello im 19 and pregnant. this is my first pregnancy. i dont no what to expect. theres so many changes. im moody alot, sleep alot eat alot, pea alot. my back feet and ankles hurt. also my nipples hurt they r getting darker and the skin around em is getting dry. i hate the smell of turkey lunch meat now. i want sex alot. my skins breaking out. im on prenatals. some one please help me understand all this.