Good morning, Jackie, Thank you so much for the Excellent Service rating, I appreciate it greatly.
"What legal avenues can we take for him not letting us know that a child was born or that my daughter is pregnant ?"
If you and their father had joint legal custody, that means that you had an equal right to make important decisions affecting the children, There is no question that he violated your rights as a mother not to tell you about these important events in the lives of the children. Your recourse is to file a Petition for Contempt for his failure to comply with the Court Order for Joint legal custody
and you also asked,
"Do I have any legal ground to get physical custody of them because of him not informing me about the baby and the current pregnancy ?"
In order to change custody arrangements, the parent seeking the change must file a "Petition to Modify Custody" and in the Petition, you must allege a "Substantial Change in Circumstances warranting a modification of the present custody arrangement". And, in the Petition, you would recite the events that constitute the "Substantial change in circumstances" because this is the standard by which the Family Court Judge will decide the case. The fact that your son impregnated a girl combined with the fact that your daughter is expecting a baby is certainly a "Substantial change in circumstances". It also shows that their father has not been paying attention at all to where the children go, and who their friends are. I imagine that he has been equally inattentive to their educational needs.
If you would like to do this without an Attorney, you can go to the Office of the Court Clerk of the Family Court and ask him for the forms to fill out - (1) Petition for Contempt and (2) Petition to Modify Custody. Fill them out, return them to the Court Clerk and ask the Court Clerk to set a hearing date as soon as possible.
I do not know what you mean by,
"Could I possibly be arrested for payed child support"
Please clarify the question and I will be glad to Answer,
I wish you the best,
Please be kind enough to rate Excellent Service" so that I receive credit for assisting you,
Bonus and Positive Feedback on survey is very much appreciated,