Cruise while pregnant?

Michelle
My mother and sister are going on a cruise next month. I'll be 14 weeks pregnant when they leave. Have any of you ladies vacationed while pregnant? I want to know if it was enjoyable or if you were miserable from the heat and maybe even the boat if you went on a cruise. I've never been on a cruise and it seems like an amazing vacation but I don't want to spend the money if I'm going to feel sick and it's not safe for the baby. Thank you for any advice!