I was thinking the same thing! It's just jealousy. They just can't ever let us enjoy a pregnancy or buy something new without thinking we are rolling in cash that should rightfully be spent on her. Sigh. My DH got taken back to court for more CS when his ex found out I was pregnant. (She lost. Her payments actually decreased by half.) Let her offer a proposal, then you can counter-offer. Buy yourselves some precious time. Drag it out. You don't want to be dealing with court during a pregnancy. (Been there, done that, wasn't fun, ended up in the hospital myself.) Your DH's first mistake was paying for anything that wasn't ordered, but too late now. I'm not sure, but I think even if she does want to go the court route, it's still possible that you can request mediation and maybe the judge will order that rather than set a date for trial. It's possible. And it's worth a shot. Once those babies make their entry into the world, that's two more mouths he'll have to feed and yes, that will be taken into consideration when that CS amount is calculated. Relax, let her write her proposals, bide your time. She's digging her own grave.

~ Anne ~

"Adjust on the fly, or you're going to cry."
Steve Doocy, The Mr. and Mrs. Happy Handbook

I don't know what she told them about it, but I'm sure it wasn't anything unbiased or fair. She's one of those who doesn't care if the kids hear her say ugly things about their father. She'll tell them to their faces that he's a jerk, a bad father, doesn't care about them, replaced them with his "new" family, etc. But we just told them that we knew they knew we'd been resolving some issues with their mother in court, that sometimes when adults argue things get said that aren't really meant, that it was a bumpy ride but ended fairly and that all they need to know is that they will always be loved and taken care of. Then we just went about the visits as usual. Even before court - and during and after court - their BM has always tried to poison them against us. It has worked in some ways, didn't work in others. Not being close enough to see them often and reinforce that relationship, we kind of suffer. But back before we moved away, just having them on the weekends and showing them that yes, we love them and yes, we want them with us pretty much shot down her bad-mouthing. They are going to believe what they experience for themselves over what someone tells them to believe. I think it's okay to acknowledge what's going on, because they're not stupid. They know. Maybe say, "I know things are crazy right now. Sometimes when two people get divorced they disagree about things and can get angry at each other. But no matter what, we both love you very much and you will always be a part of our family." That kind of thing. We also encouraged them to think for themselves. (Sometimes mom and dad get mad at each other and say things. Maybe they are true, maybe not, but don't let other people's opinions decide how YOU feel. Make up your own minds about whether dad loves you or not based on whether or not he shows you and tells you he loves you, not based on what your mom says when she's mad at him.) Then just do what you always do. Keep it as normal as possible. My oldest SD did have some questions and we answered them as truthfully as we could without making her mother look like the bad guy and I think she responded to that better than she did to her mother's ranting and raving. We told her that her mother thought the CS should be one amount and we thought it should be a different amount, so we decided to tell both sides to a judge and let the judge decide what is fair. We didn't have any problems from the skids from court.

~ Anne ~

"Adjust on the fly, or you're going to cry."
Steve Doocy, The Mr. and Mrs. Happy Handbook