Advice .. feeling sad :(

So just had a doctors appointment, my first one since finding out I'm pregnant. I'm 5 weeks, 2 days. I keep getting slight cramps like period pain. The doctor was so negative, told me it's too early to tell... could be an eptopic pregnancy, late period or misscarrage. He was like it's all too early to say so we have to let nature run its course. I've had no bleeding at all and he said everything In my stomach felt fine. The only advice he gave me was to not do another pregnancy test and all I can do is worry.

Just don't know how to feel. I want to keep positive but when your own doctor is being negative It's hard not to. :(