I think that is early to test and have no idea since I didn't test until the day before my beta. Hcg can stay in your system technically for up to 12 days per my RE. either way ... Good luck!
I tested at 4dp5dt for the first time this cycle and got a clear positive. I was SO nervous it was the trigger that I emailed my RE He said it was very possible to be real. The next day it was darker and I did a little dance.