Her parents. The 16yo is responsible for her baby.
There are no laws against dating but since the 16yo is a minor the parents can get you in trouble if you see her against their will. 16 is also the age of consent unless you are in a position of a teacher or guardian etc and then the age of consent is 18.
No. Only the legal guardian can. Very few 16yo get adopted. They usually end up in fostercare until 18yo.
Depends on what state you live in. One state has 14 but most have 16yo.
The 16yo have to be accompanied by her parents when getting the license.
No the mother is, the 16yo.
The 16 year old is considered emancipated. As long as they are legally married, the parents no longer have control.
16 is the age of consent so yes. But I would not recommend any 16yo to have a child. At least wait until she is 18 and can move out if she wants to and decide things for herself. She have to follow her parents rules as long as she is a minor, baby or no baby. It's up to the parents whether she will be allowed to see the 19yo again. He has the right to see his child but regarding the 16yo is up to her parents.
If the 16yo is willing and with parents permission, yes. They are still responsible for you though since you are a minor and not emancipated.
The 16yo is a minor and unless she is emancipated she can not decide where to live. If the grandmother have custody you have to go to court to get her back but if you still have custody the grandmother have no right to keep her.
Physically there should not be a problem since he is in puberty and 16yo boys get 16yo girls pregnant. Legally, if he is below the age of consent the sex is illegal and she can go to prison for statutory rape. If he is of legal age to consent to sex and his parents report her, the judge can decide that due to the age difference and the pregnancy the age of consent should be 18 so then she can still go to prison for statutory rape. So legally this is a very bad idea.
of course a 16yo can surf mavericks