could I be pregnant?

I have been having kinda weird symptoms. I have been eating more then normal and craving Mexican food like no tomorrow. I also have found that I39m going to the bathroom more and drinking more. I39m tired all the time and my moods are changing faster then normal. only symptom I39m slightly slightly having is my girls hurting. could I be? TTC#3 but this stuff is different then my other 2.