Hola ! Congratulations on your engagement and welcome to BDW forum! Dont worry, slowly slowly, your wedding will be perfectly organized and you will have i am sure the most beautiful day ever!
The Riviera Maya would be a great option. You will certainly appreciate the Carribean charm. Check out this link to find all the different hotel/resorts options : http://www.rivieramaya.com/index.php?sortBy=+got_info+DESC%2C+name_esp+ASC&id=42&catid=2&option=com_dirfrm&task=listSH&limitstart=70&limite=10#listado
From Le Reve Hotel & Spa, we wish you all the best.
Happy planning.
Saludos desde Playa del Carmen!