With My first i used several HP tests all saying neg. few weeks after being late i decided 1 more test and i'll get the GP to do some teste... The last test (out of 5) had a faint pink line... looked like it was a dud... (or so i hoped at first) too myself to the GP and Yep i was preg... blood test proved it... Same thing happened this time... HP test didnt work with me....

I'd see the GP and get a blood test done. At least then you'll know for sure. If its not then the Doc can look further if he thinks its necessary... takes the stress out of wondering for a short visit i say... Good luck...