Husband could care less about pregnancy

So my husband is a great man, and a great father, but when it comes to me being pregnant he could care less about ultrasounds or hearing the babies heartbeat or anything like that. It really hurts my feelings, maybe more than it should! He says he "cares once the baby is here" and don't get me wrong he is 110% helpful once the baby is born.. this is our second pregnancy together and I guess I just kinda figured after seeing our first baby he would be more interested! We planned this baby and I feel like I'm the only one enjoying the pregnancy. I'm 13 weeks and had an ultrasound today and tried to show him the pictures.. he told me to get them away from him?! Am I overreacting? I'm not sure how to explain to him how hurtful it is to me