I was wondering when I should take a pregnancy test again. I had my period December 4th. I am always on time every month so I should have started between January2nd and the 4th. This is now the 9th and I have yet to start. I did take a pregnancy test on the 6th but it was a negative. I have been nauseas feeling, frequent urination, a little more tired than normal.

You could take another test at anytime. If still negative, wait another week and see what happens with your period. It could just be off this cycle. Since you are normally quite regular, if you continue to feel possible symptoms, check with your doctor about having a blood test done.