Advice!

So i have a 3 year old and i was thinking on leaving him to my mom once i go into labor since he really loves her & he is way more comfortable with her. But yesterday my MIL suggested to my husband for him to stay with my 3 year old so he wouldn’t be sad about not being with us for 2/3 days and told him she can be the one to be with me during labor since only 1 person is allowed. I appreciate her trying to go be with me but i just wouldn’t feel comfortable at all. I do feel sad because my son has never been away from us at night so idk how he would react to that i have kind of talked to him about him staying with grandma and he says yes with excitement but who really knows until the day comes. Btw i wouldn’t want my mom to be with me during labor either just because she starts panicking and gets really worried & starts not feeling well when she sees me in pain. So Idk what to do. I really want my husband with me but i don’t want to feel selfish .