The belching in itself shouldn't be an indicator of pregnancy. The long period may or may not be, same for the faintness. Combined with a negative pregnancy test, which should be accurate if your period did not seem unusually early, it wouldn't appear that you are probably not pregnant. You could see your doctor to confirm this and to find the cause of the lengthy bleed.
Who's pregnancy test? Yours?
No, she is not pregnant, she in menstruating.
Pregnancy tests are not 100% accurate, but being that it was negative and you got your period, I'd say you are definitely not pregnant.
If you are not pregnant, yes.
You can get pregnant a week before your period, the week of your period, and the week after your period, and some pregnancy tests are faulty.
More than likely NO! My cousin was 6 months pregnant and her sister who was not took a pregnancy test to see if she were. The pregnant cousin got a negative result and the sister got a negative result. I would trust my doctor before a home pregnancy test. They do not always work.
You're not pregnant?
Depends. Why aren't you having periods? A period is not necessary for pregnancy. Some women are "constantly" pregnant; that is they get pregnant after each birth before they have a period. (Each period is the result of not getting pregnant.)
Pregnancy tests are almost always accurate with home tests it is more common to get a false negative then a positive if it says you are pregnant then you are.... With a blood test you will most likely always get the correct reading because your blood changes it increases and it develops a hormone that is only there when pregnant.
I'd be worried if you remained on the pill if you were pregnant. But if you are one the pill and a condom is in use, then 99.9% of the time you wouldn't get pregnant.
What you weighed before your pregnancy. Gravid = pregnant. Pregravid = pre-pregnancy.
You may not be pregnant, you may not be far enough along to test, you may not have followed the test instructions.