I tested 4days before my expected period. So like 2weeks after conception, and it was positive
I tested 10 dpo which ended up being right around 4ish weeks. The 10 dpo was super faint but then it kept getting darker
I was two weeks pregnant too, very faint line but it was there!
I tested positive at 4weeks, 5days We conceived around July 12th and my first positive test was August 8th. Best to wait at least 3 weeks because I know some people tested positive earliest 3 weeks!