Down hill since baby

Has anyone else's relationship gone downhill since they have had their baby. I'm actually pregnant with number two and I'm really scared of how it's going to turn out. I've been with my husband for six and a half years married for 2 and I find that he's not taking the babies very well. My daughter just turned 10 months and my boy is due next month and I'm scared of the stress that it's going to cause on our relationship.

I know men take longer to adapt but sometimes he says mean things or has no patience.