Hey there!
Sounds like a slim chance that you are pregnant.
Test again if you can't wait for the results, with a higher test, or other brand.
Some tests aren't always accurate.
5 years on the pill, and neg test sounds pretty safe though so don't stress.
Like you've already been told though, if you can't accept having a chance of pregnancy, then the only way to push off being a mommy is to abstain.
The stress your bf puts on you with the worrys could also delay your period.
Sometimes your period skips, its not likely after a regular 5 years of b\c but who knows.
Keep a clear mind, the blood tests in, not much more you can do now. What's done is done.
Whatever happens, best of luck, you'll be fine.
Keep us posted please!