Jodie
It is still very early! An egg implants usually from 7 to 10 days after conception and once it attaches it usually takes 24 to 48 hrs to start releasing hcg to show in your urine. Assurance plus I think is about 15 to 20 mlu so I think you should wait until at least 10 dpo before testing again or even until you have missed your af then you will know for sure. ( I got my bfp clearly on 10dpo with this brand and my hcg level from blood test on 11 dpo was 50mlu) Hope this helps a little! Goodluck!