I took a early home pregnancy test 3 days before expected period and it was neg should I still be worried?

Pregnancy tests can't tell you're pregnant until your body has had enough time to make the hormone hCG. So, if you take it too soon (and 3 days before your expected period is generally too soon), the test might say you aren't pregnant even though you are. You should take pregnancy tests after you miss your period. Otherwise, you won't learn any information that you can trust--you'll just waste your money.