I was constantly hungry when I got pregnant....I couldn't button up my jeans any more. I kept saying to DH "I can't help myself, I'm just hungry all the time". I was also exhausted ALL THE TIME. I didn't get morning sickness and the sore boobs didn't happen until I was about 9 or so wks preggo (blah, and they are still sore to this day).
I had irregular periods so I didn't think much about being pregnant. My dr had told me that I was probably never going to have another child....fooled him
Anyways, symptoms are different for each and every person....just like peoples pregnancy. The only way of truely knowing is to stop guessing and take a test.
Good luck to you and let us know how your test turned out!