Could I be pregnant?

I had my cycle 2 weeks ago, but it was shorter than usual and wasn't as heavy as it normally is.

I feel tired a lot. When I eat a full meal like I usually do my stomach gets really upset along with getting upset at random times and it's almost like I need to puke but I don't. I have to urinate more often. And it seems like my breasts are getting bigger and seem a little sore but I'm not sure. I have also have just been an emotional wreck lately.

I did have unprotected sex a little more than a month ago but I wasn't ovulating.

Thoughts?