Can pregnancy tests be wrong and How common are false negative pregnancy tests?

Am I pregnant. My boyfriend you know what in me. And all my pregnancy tests are coming back negative. And I have bad cramping and I feel nauseous. And stuff. Can you tell me if I'm pregnant? It was January 8th could I be pregnant?

Negative tests. Period due tomorrow. I got heartburn like a mofo right now and that’s only ever a pregnancy thing for me.

I am a month late a I took tests but they were negative I also took a blood test and it was negative I feel like it was wrong

I am 9 days late and all my pregnancy tests came back negative and we tried like 4 weeks ago for baby number 3

Hey mamas, so pregnancy tests are coming back negative after I got a positive 2 weeks ago.. I am having symptoms that are both pregnancy and PMS and no spotting or period yet.. Anyone else have this?

Mommas I'm 3 days away from my missed period and pregnancy tests are still negative so I believe I'm out this month. Anything I can take or do to help me conceive?

So last week my two tests were vvfl but now my tests are negative... did I have 2 false positives?

I'm getting right side pain in my stomach and in my back I took a ovovulation tests and pregnancy tests but they are all negative

I've taken 4 pregnancy tests they all had faint lines. I took one again now and it was negative what does that mean?

I took two pregnancy tests and they came out negative so I’m not understanding