Am I pregnant?

Hello,
I am  20 years old and have been having major cramps I'm my lower abdomen and sometimes sharp pains on the  right side, today I almost vomitted after eating a chicken sandwhich from sonic, I have been havingb a lot of weird dreams, which is rare becaue even if I do dream I never remember them anyway. A few days ago my left eyebrow was twitching for four days (don't know if that's related or not) I'm always tired and I have been taking my thyroid pill. And for a week I have been smelling a gross smell coming from my lower regins but it doesn't smell or itch like a yeast infection, plus a lot of white creamy or clean discharge. Also I did have unprotected sex the day my period ended which was feb 26, and also on feb 19 & 12. But he didn't ejaculate inside me. Also my knees and hips and lower back hurt even more than they already did. So the question is; could I possibly be pregnant?