Possibly Pregnant

Julie
I am new to this- never been pregnant. I am 27, good health, extremely active, and enjoy healthy cooking. Recently though, this past week has had a variety of symptoms that make me wonder. I am at a stage where I am not on any sort of birth control and haven't been for over a year now. 
first I noticed my breasts were extremely sensitive. Putting them into a bra, taking them out, going on a run, even leaning on my desk at work HURT! they definitely felt that "normal bigger feeling" that we all sense during our cycles.
Then, I have thrown up over two different smells. Both smells came on very fast and I just couldn't handle them. However, I have always been around These two smells and never
Caused me to throw up.
 
I have a headache that won't go away- even with the help of
Morning coffee. And today I had to leave work after throwing up twice. 
I am only two days lte, so I don't want to think too much into it. But I guess I should get a pregnancy test ? THOUGHTS? Anything to call my nerves?