Potentially yes...if talking to a boy leads to you having sex, and you don't use Birth Control or emergency contraception.
No they do not cause pregnancy.
Yes, for some women it can. It is worth talking to your midwife or doctor about it though, because it could be a sign of anaemia. Nausea and dizziness is quite common throughout pregnancy.
Cuddling won't cause pregnancy.
No it doesn't cause, prevent or end a pregnancy.
Yes, lithium can cause a false pregnancy on a pregnancy test.
White secretions won't cause pregnancy.
Pregnancy may cause your feet to swell.
Sharing a bath won't cause pregnancy.
A Man/Boy Can Not Get Pregant At All!
Yes, a boy can buy a pregnancy test. But, just because they can doesn't make them want to.
The duration of The Boy Who Stopped Talking is 1.8 hours.
While it doesn't actually cause pregnancy, it can be a prelude to it.