Well it may seem that you could be pregnant and just not showing up just yet. If you concieved it was probably right before your period. I think you should get a blood test or wait another week and retest with a pregnancy test. Good luck, I hope it turns out the way you want.
I have taken the one with lines and the digital test. I am not on any form of birth control
Are you having unprotected sex? Are you on some form of birth control? If you're having unprotected sex or even on birth control you know that you still have a chance on getting pregnant so the real question here is why is there no period right? what kind of preggo tests are you taking the ones with the lines? maybe it may be too soon to tell. If you concieved just before your period was due it is possible that it's just too soon to tell. The only way to know for sure is a blood test from the doctor.