My husband thinks I would be happy if I lost the baby I'm pregnant with?

I'm 10 weeks pregnant with number 2. Our son is only 6 months old. I have to admit when i first found out I was pregnant, I wasn't very happy at all. I had horrible PPD with our son, a horrible delivery and lately our son has been really whiny and just wanting 24/7 attention, to the point where I can't even pee without him screaming. He told me today that he thinks I would be happy if I lost this baby. I take all the precautions your supposed too. I am still not overly excited just because I am scared of the same things could happen this time as they did with our son. Also I have had 24/7 morning sickness, what is that to get excited about when you feel like puking your guts out constantly. I have told him, I didn't want the baby to begin with but after seeing the U/S I want this baby just as much as I did the last one. How do I get him to understand that?