Girl, whats up. I am 17 and pregnant too and I know what you mean. I am 2 and half months right now.. I have a job where im up at 6:30 am everyday and get home around 4:30 pm.. And my job includes alot of heavy lifting etc, and its really hard on me, I cant stand on my feet for as long and I just dont have the energy I usually have, and I usually throw up at least once a day from it.. But I need the money.. Altho im wondering if maybe im harming myself or the baby from my job.. But anyways.. Start taking prenatal vitamins, when I started taking them I noticed that they helped a little bit.. I also feel really bad I havent done anything with my bf in probably a month and a half and hes kinda getting frustrated.. I still cuddle with him and stuff.. But I just dont feel like doing anything else and I wish I did.. Also.. Stay in school.. Theres no reason not to go.. Its ur choice obviously, I dropped outta skewl a while ago. Its not my thing, I hate it there and just dont wanna go back even tho I know I should...Its hard to tell the chances of miscarriage except that it decreases after ur first trimester...And last, about the eating, I find myself not being as hiungry as I usually was wich I dont understand..But ur not gonna be twice as hungry for twice as much food.. Just when u do eat make sure your eating healthy, you dont have to eat alot..Basicly just try to to stick with "canadas food guide" (or whatever its called..If u live in canada) is the best way I can describe it, try to get more protein and iron..Drink/eat dairy products they build the babys bones, meat and alternatives build muscles and blood. Vegetables are for the babys brain and nerves, grain products are for the growth of ur baby, and take ur vitamins...U can find a pregnancy calculator online, but usually u get pregnant around the 14th day after ur last period, that should give u a aproximate result.. Sorry if I rambled on too much, good luck