Legal grounds to change custody agreement
I am currently in middle of divorce. My soon to be ex is now living with his girlfriend(they tell everyone fiancee) who is pregnant with his child(assumedly) and her 2 monor children. My 15 year old son and 12 yearold daughter live there as well. I have shared custody of both my daughter lives with me 50% of the time my son refuses to spend time with me but is allowed by the father to stay every day there is no school with friends in the town where I live 40 min away from Dad. I keep trying with my son to no avail.
We have a custody agreement of true legal and physical custody of both children but Dad makes it very difficult financiallyand any other way for me to do this even with my daughter who does want to see me. I am afraid that both of my children are going to have even less supervision now that a new baby is coming. Dad refused to pick son up to get back to hose the day before a final because girlfriend had appointments to go to.Nither dad nor girlfriend have worked for almost 2 years.
My question is do I have any legal grounds to go back to have the custody changed it was only finalized in January but the new baby coming changes things