Hello on February 23 I was light spotting. On march 1 I was suppose to stat my period now I'm five days late. All test I took were all negative. Can I be pregnant?

It is possible... sometimes it can take several weeks, or longer, for some women to get a positive result on a urine test. It is not the norm, but it happens.

Wait another week and see if your period is just late this month. If still no period, try another test. Still negative... wait and see what happens when your period is due for next month. You may just end up skipping a month, or you can see your doctor for a test there.