Signs of being pregnant

Sameera
For the past few days I've been having a sharp pain in my stomach nd my back. I went to the out of hrs service the doctor didn't know what's the pain for he just give me medicine tablets for tight intestines I took thm but still hav some sharp pains below my belly button and in the middle some time on the sides too as well as my back. Can anyone tell me are these signs of being pregnant???