Last month I miss my period & last week I felt dizzy, I slept a lot, & throwup everything I eat , do you think I'm pregnant?

The throwing up and dizziness are symptoms, but are also symptoms of many other things. The red flag is risen with the missed period, that could mean you are indeed, pregnant. A pregnancy test, or visit to the doctor can tell you for sure.

1. Have you been having sex ?
That is the first important issue, since you can't be pregnant unless you are having sex.

2. Since you missed a period, yes it is possible

3. you need to do a pregnancy test, available in most stores, and use it first thing in the morning, with the first urine of the day