Do you have to pay child support if your not married and you share joint custody?

The parent with physical custody receives child support from the other parent. If the parties have shared custody the court will use state guidelines to determine if someone pays child support and...

Absolutely. Paternity makes you responsible for supporting your own child whether you were married to the mother or not. If paternity is established, child support is due regardless of marital...

of course

In most states a married child is considered an "emancipated" child, thus most states will stop child support at marriage. Check your state laws.

Paternity must be established before an order for support is entered. This is done by: genetic testing; presumption, where the parties were married when the child was born/conceived; acknowledgment...