If the test was administered by doctors then it is highly unlikely that you are pregnant, especially if they did a blood test. Missing periods is not unlikely and does happen in women with high levels of stress, malnutrition, or sickness. If it continues to worry you then go see a gynecologist and get a regular checkup and pap smear then see if it may be best to go on the Birth Control shot or pills. These control hormone levels and correct your missing periods.
No, a period and a negative HPT (used at the appropriate time) indicates no pregnancy.
No
yes
If you have healed and gotten your period back there is no pregnancy hormones so no it can not.
The negative pregnancy test is the defining answer, regarding pregnancy - once your period is a week or so late - if you are pregnant, the hCG will be high enough to be detected.
Yes you can. A missed period can be contributed to pregnancy, stress, malnutrition, or a disruption in hormones.
Take a pregnancy test. Chances are if you are worried about being late, there would enough hormones to give you a positive or negative test.
How long has it been since you had sex? If it has been less than 21 days it is possible that you didn't have enough hormones built up in your system to show a positive. I would take another test if you still don't have your period. Doctors aren't perfect.
Most likely your period. You're probs not pregnant.
. . . means that you arent pregnant.
Yes
Things can get pretty muddled, you're dealing with all the same organs and hormones with pregnancy and period. Best to just take a pregnancy test. They are very inexpensive and quite accurate early in your pregnancy.