Can you get a positive home pee test after just 7/8 days after having sex??
Well yes, but conception would have happened from an earlier encounter.
No because pregnancy doesn't happen that fast
No. Implantation doesn't even happen until at least seven days after conception (which itself can be up to five days after sex). If you got a positive seven days after sex, you are pregnant from sex occurring at least fourteen days prior to testing.
Yes, on the First Response digital and manual tests are the most sensitive, and can detect hCG-h