Pokemon GO finally launched in a number of countries but users who have been attempting to play the mobile title have been plagued with server issues making it a nightmare for those of you who just want to play and catch some new Pokemon. The official Twitter account has stated that they’re busy working on the server issues and they also plan to launch the game in other regions very soon.
Thank you for your patience. We have been working to fix the server issues. We will continue rolling out #PokemonGO to new countries soon.
— Pokémon GO (@PokemonGoApp) July 8, 2016
Thanks, paidenthusiast and MasterPikachu6

Puerto Rico has been down since the app launched officially for us.
Ok