Do you think I could POSSIBLY be pregnant??

it sounds like you could be but, the only way to know it's the test. I really didn't have any symptoms but sensitive and was pregnant. Every women is different. Take a test the first day of your missed period and see. Don't worry if it doesn't show positive right away. Mine took 3 weeks to show and it was an emotional roller-coaster. I have been there so just be patient and good luck to you.