possible symptoms? please help!

Katie
Okay so it's 8 days until my due period and I have taken a test which was negative.
I am fully aware that it's probably too soon but I have a couple of unusual symptoms which could potentially be due to pregnancy ? I am not sure if you could even get symptoms this early!!
Firstly, last night I woke up 3 times in the night desperate for a wee. This never happens!
Also, earlier I sneezed and I cant explain the sharp and horrendous pain in my lower abdomen. I can't really explain it it was strange!
Any advice would be appreciated xx