Am i pregnant? only serious answers please. i will see a doctor?

i should get my period this weekend. i have had heartburn everynight for a week which is not normal for me. because of the heartburn i have had an upset stomach 24/7 and i have had nuasea. i have been constipated but when i poop it is diahhrea and it is bright green.(which is common in pregnancy) also i have been drooling everynight for 3 nights which i do not do, i am not sick or anything so i believe the drooling is from pregancy (pregnant women produce more saliva) lately i have been having to pee every 2 hours and cant hold it. it is not accompined with pain or burning or anything. i have been very moody i go from very happy and hyper to very mad or upset. i have had a dull pain around my hips. and i have had bad gas. when i get up from laying down i get very dizzy.