Hi, in the nicest possible way, either go to the pound shop, or get on ebay and by a load of cheap pregnancy tests.
There is no way of knowing if your are going to be pregnant this month or not, or when a test will show up. Sometimes it shows up early, sometimes takes longer.
If you can hold out, do another test next week. Of you can't wait that long, do one in a couple of days. ( this is why you need loads of tests, because if you are anything like me or the vast majority of womens trying to get pregnant, you will try and hold out a couple of days,but it won't be long before you are weeing on a stick every other morning, if not every morning )
Please don't take this as me being blunt, but either the test will one day be positive because you are pregnant, and what day that is is anyone's guess. Or it will continue to be negative as you aren't pregnant.
And yes, it is very very annoying and will end up doing your head in, but go with it and just keep weeing on cheap pregnancy tests!
However, I wish you heaps and heaps of luck and fingers crossed you are pregnant!