rather than try and guess what it could be, you might visit you doctor and find out what it is.
No, a period and a negative HPT (used at the appropriate time) indicates no pregnancy.
when in doubt, assume you are pregnant. then take a urine pregnancy test, and if that is negative. then you can also check by getting a blood pregnancy test.
No
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.
Most likely your period. You're probs not pregnant.
. . . means that you arent pregnant.
Yes
No you can't be pregnant and still have your period. You can have a light bleed but not a period. As for the whole negative test thing, it could be a false negative.
If you are genuinely having a period, then the test will come out negative because you cannot be pregnant. However, some women think they are menstruating when they may be bleeding for some reason in early pregnancy. The test then could either be positive or negative depending on the condition of the baby.
Unlikely - the bleeding probably was your period
Having your period means you aren't pregnant
You are pregnant