My home pregnancy test says i am not pregnant. could it be wrong?

Yes, sort of: If you're pregnant and it's neg, it's probably more likely that your urinary levels of HCG aren't yet elevated enough to be detected. The over-the-counter tests aren't always as sensitive as tests at your doctor's office. Best to recheck 1-2 wks later if you're late for your period & suspect you might be pregnant. Also if you're levels get too high, they can cause a false negative on the test.