still no idea what's going on!

OK so AF is almost a week late, i have various symptoms but the test was inconclusive. It was a clearblue and looked like it had a very faint downward line but not sure if this was a proper line or not, could only see it under a bright light.
now have to wait for another 3 days and re-test and will then go to dr to try and find out what is going on if it is still negative and AF hasn't shown. Why can ... be straightforward and easy!