Did 3 tests two weeks ago all negative got a positive last Friday and today I did a clear blue digital that says 3+ the internet says this is around 6 weeks or more but I also had bloods on the 12th of may that detected no HCG so I'm confused to how many weeks pregnant I am can anyone help please thanks. Also I only had intercourse 4 weeks ago which also wouldn't make sense as to why it says 3+ could I just have a high level of HCG?