My period was supposed to start 2 days ago I have taken around 6 hpt's and their all negative can I still be pregnant? I have been tracking my periods for 3 months and they have been pretty regular

Most . Most at-home pregnancy tests are fairly accurate a week after your missed period or 5-6 weeks after your last period. If you take them earlier than that, they may not be as accurate. Blood and urine pregnancy tests at a doctor's office can detect pregnancy a little earlier - the blood test can even detect pregnancy 7 days after ovulation (about a week before your period). I attached a link to a web site with more information on how pregnancy tests work and when to take them. Good luck!