The early detection tests can be a little misleading, their accuracy rating is still based on testing the day after your period is due so even when they say '6 days early/99% accurate' the reality is when you are testing so early the accuracy rate is much lower. You're definitely not out, test again in a couple more days ☺️
Nope deffo not you are very unlikely to get a positive now, I’ve got positives from like 10dpo usually and some get them later than this