Am i pregnant?

...K...

Hi!

My boyfriend and I are trying TTC #1 we haven't been trying for long, but my periods have always been regular, even when I wasn't on birth control. I was due on Wednesday (4) and still no sign of AF on her way! I have been feeling very nauseous since Sunday(1) and I have had a severe headache since Wednesday(4) too. I took a test this morning (Sunday 8) but it said negative. My boyfriend isn't convinced the test was right. Has anyone else experienced this?