Maybe Pregnant

Jasmine
I dont know what to think. 
I went on Vacation with my boyfriend. We had sex multiple of times. I get baCk i have a light period. Now ever since my so call period end ive been nothing but sick my stomach hurts i feel like throwing up every morning. Then my bowel movement is totally different i also feel a little cramping from time to time. I dont know what to think. People say u should go and get a pregnancy test. What does everyone think? What could be wrong?