am I pregnant??

Lauren
Alright soo hubby and I are ttc! Last month I was two days late for af and then I got her but she only lasted two days. Very unusual for me. She normally lasts a good 5 days. This past week I have slept more than ever and I'm always so tired. I could fall asleep anywhere. Been so moody and cranky as well. However I've taken multiple teSts and they all come back negetive?? Should I make a doc appt just to be sure? I don't want to get my hopes up. 
What do you all think??