Husband is scared?

We are having our baby this coming saturday and I feel like I've been so ready for him to be here I haven't sat back to realize my husband is absolutely terrified. He doesn't want me to go into labor and he's constantly checking up on me and going grocery shopping for me so I won't go into labor. I talked to my mil this morning and told her I'm getting a feeling that he's sort of anxious about this. She admitted to me that she had talked to him yesterday and he confided in her that he was scared. She didn't tell me more than that though. He has a son from a previous relationship but him and the child's mom weren't together the entire pregnancy, nor were they after the birth. He doesn't see his other son much because she is kinda weird about it still. So im not sure if this feels more like he's going to be a father this time around? Because this is a very different situation. I'm looking for other women who experienced this with their husbands and how they addressed it. I'm worried that he doesn't want this baby, and that may just be me overreacting and thinking the worst.