Questions about test

Kristin

I took a test yesterday and got a positive I'm supposed to be 3 weeks pregnant should my line be dark for this early like it popped right up at 8dpo I'm 9dpo I can put test in comments just wondering a lil confused if I ovulated early or I heard if u get a bright test that early it could mean twins I've had 2 miscarriages after my son that is 3 I'm just so nervous and hoping this is my sticky little bean