Stimulus check question for parents

Ka

Has anyone with kids recieved their stimulus check? If so was it split in half between you and your ex? I am currently going through a divorce and my husband due to being incarcerated owes me a lot of child support. Still waiting on our tax return cause they will run his half through child support (hopefully they only do his half and not the full amount) but I did get my stimulus check this morning. It should have been 3900 for 2 adults and 3 kids. I know if you are in arrears they will run it through child support so I figured they would run his 1200 through CS and give me the other 2700 but I only recieved 1950 which is 1 adult 1.5 children.