Dont want my mom in the delivery room

 So on Monday, we found out that my husband will not be able to be here for the birth of our last baby and I was upset so I called my mom to tell her the news and now she just thinks that she will be the one in the operating room with me but I don't know how to tell her. I don't want her in there without hurting her feelings.  I really would like my mother-in-law in there instead because we have a much closer relationship and my mom stresses me out. She lives in Florida and I am in Tennessee and she is wanting to be in the delivery room stay at the hospital with me and come hang out at my house a few weeks after he gets here we don't have the greatest relationship. It's not the worst one either though I just feel like I'm already gonna be stressed and I'm my husband not being there I do not need the stress of her being in there on top of it. What would you do?