Early pregnancy symptoms?!

Gladys
Hi everyone, 
I just had a blood test to confirm I was pregnant a week ago and have my first ultra sound appointment next Thursday. 
I haven't had any symptoms yet. Is this normal? Do some not experience any symptoms until they're further along? 
I don't want to seem paranoid, but I am. Haha!  I'm expecting my first so I have no idea what is common or normal. 
Any info would help! Thanks so much!