Ultrasound 4 weeks!

Katelyn

I had an ultrasound done at 4 weeks and 4 days they couldn’t see anything the tech said that this is normal but I’m really scared I’m not scheduled for another ultrasound until I’m 6 weeks. My first time being pregnant so I just want to make sure its normal to not see anything that early like they said all my at home pregnancy test are still positive and getting darker by the day but my doctor still haven’t even ordered blood work any suggestions?