I am 22 days late for my period, have done hpts all neg even a blood test last week also neg. i have a lot of pregnancy symptoms. could i be pregnant?

No: No, you are not pregnant. The pregnancy tests are very good. There is another reason for your missed period. If your periods are usually normal, the reason is usually stress. If this is the case, your periods will usually return to normal within a month or two. Also, some contraceptives can make you skip periods, so if you are on the pill, etc, this may be the cause.