My last period was Nov 3-6 and I haven't seen anything I've taken three hpt all came back negative could there be another issue although we're trying to get pregnant I'm starting to get scared now. I never been late like this someone told me to test through my blood than pee on the stick what's the difference.

Make sure you are taking your urine tests using first morning urine as it has the highest concentration of the pregnancy hormone, HCG.

Most women, at least once in their lives, miss a period for no specific reason. If you miss your period next month, make an appointment with your doctor for a quantitative blood test. That blood test actually measures the amount of HCG in your system, something a urine test can't do.