My baby father got a new girlfriend about 3 weeks after we split and has missed every doctors appointment I’ve had when he said he was going to be there for them all... would I be wrong to message the new girlfriend the dates and times to tell him

He said he would be there for all the appointments before we split but hasn’t been to any and we broke up 2weeks before my first one... I still care about him but right now I just want him to be here for the baby and to find out the gender would I be wrong to send her the date and time since I know that’s where he be at... I’m not even sure if she knows he’s having another baby maybe that’s why he’s been missing the appointments? I don’t wanna be begging him to do anything I just wanna do my part and say I tried to include him so when my child asks I can be honest