Thank u very much to all for advice..
Call your doctor for a blood test and follow up ultrasounds if necessary to determine if you are pregnant or not.
I was 6 weeks pregnant and hpt's didnt work for me they all came back negitive and then I had to go to the ER and they did a blood test and low and behold I was preggy. I did home tests for two months and one 48 hours before the ER visit so... get a blood test I say.
I worked with a girl who had all the early pregnancy symptoms so she took a few hpt's and tehy were all neg. After being sick for a month, she went to the doctor and he gave her a blood test and she was pregnant. Yet the home tests said neg. right up untill then.
Just some food for thought.
Being 2 and a half weeks late for your period,then the tests would be accurate.our body cycles can change from time to time,due to stress or maybe illness.or you may have had a anovulation cycle.where no o took place.I would make an appointment with your doctor and get a blood test just to be sure.but the tests would have been accurate.