baby? maybe

i think that i am pregnant, but i havent took a pregnancy test. i have had bad headaches, my feet are cold all the time ,i eat banana yogurt which i dont eat but it seems to tast good,its hard for me to sleep at night because i get so hot. my friend that i go to school with she told me that she is 4 weeks pregnant and that she went to the doctor and she has gotten her results yesterday. in her lower stomach it is hard and thats where mine is hard too so i dont know if i am or not.

So if there is anyone out there like this or has had a past experiance please help me.