Keep getting negatives!

Hi! I conceived June 20th. I missed my period by 8-9 days. I tracked it on 2 apps and it's never late. I took 4 pregnancy tests so far and all negative. I called a doctor and they said it was too soon to test and try at 2-3 weeks. Anyone have any advice?! I'm really nervous. I think I'm getting symptoms but this can all be in my head! If you know or think you know when I should test or have anything else pleaseeeeeee let me know! Thanks!