Yes but you need parental consent.
yes
not without their parent's say so.
No my dear, you can not even leave the house without their permission until you are 18.
yes it will
You can't.
No
Yes, you become adult and emancipated at 18 with or without a baby.
At 19 you are a legal adult. So yes, you can get married without consent.
(in the US) It certainly is possible. An 18 year-old is an adult according to the laws of all states.
They should not sleep without an adult somewhere in the house IMO.
No. She's a minor, you're an adult.
Accompanied by an adult, certainly.