I am 27 years old... the 1st day of my last period was April 30, 2009 and it usually last about 3 days... my cycle is 28/29 days... I haven't gotten my period yet I am usually on time... my husband and I had intercourse(unprotected) May 15,2009... I took a pregnancy test on June 4th it was negative... I am always tired... I get nauseus flying which isn't normal for me... counld I be pregnant... and if so when would be the best time to take a test

Maybe give it several more days and see if your period is just going to be late this cycle. If still no period, try another test. If still negative, either wait until next month and see what happens with your period at that time or see your doctor for a possible blood test. They will likely do a urine test anyway then may or may not have you take a blood test as well before waiting until next month. The reason they sometimes don't automatically go to a blood test is that it is can happen that a period would just be skipped once in awhile then resume a normal pattern.