A missed period doesn't necessarily mean you're pregnant. It can happen for other reasons. Stress can make you late, for one thing. And certain health problems can make you skip.
A home pregnancy test would probably pick up a pregnancy by now if it's eleven days after you got your period. If you're worried, doctors can do a blood test for pregnancy that's much more accurate. It might also be worth a general gynecological exam, to check for other health concerns that might be affecting your period. If you're having other possibly-related symptoms, like bad cramps or a fever, definitely go see a doctor.
Negative eleven plus twenty is positive 9.
-1331.
-6
Yes, it does.
negative eighteen
Yes, many eleven year old girls are reproductively mature. If they are sexually active they can get pregnant.
It is -11A.
positive four
-11 + (-7) = -18
It's 9. Hope I helped! :)
-88
It is: -10-1 = -11