Love Love Love Resort Only trips ! We did this when I was 8 weeks pregnant , and we went to the GF. Our thought was , to splurge prior the the little one's arrival.
We had special dinners and layed by the pool , relaxed, slept in. I think we went into MK once , just cause we were AP holders , but it was not an extensive park tour or anything. We also really enjoyed shopping and picking out some special gifts for the baby.
Congrats to you both , it's such an amazing time. No matter where you stay , it's a memory making trip.