Im not sure i can answer all those questions but i will try for ya!! I don't really thin there is any other definate way of knowing if your pregnant or not, as feeling the classic symtoms doesn't always mean you are pregnant. I would maybe get a test. I would then maybe go to the doctors and get a blood test. This is a more accurate way of testing, as if you have had alot to drink before the urine test is taken, your urine will be diluted and will make it harder to the test to show positive. So when you take a home pregnancy test try and do it 1st thing in the morning, coz then you have had a good break without drinking. As you are so late it would say your are pregnant. Im not sure if pimples are to do with pregnancy. Been tired is a good symtom as your baby takes out all the nutrients from your body, so you have to work even hearder to keep then stoked up! Feeling hungry could be a sign, but the whole eating for two thing is rubbish, as its not your baby who need that extra food its most of time your cravings of food!! Hope this helps you!! Good luck. Jenna x