At what age do you put your toddler in Pre-K?

Tiffany • Im 23, married to a wonderful man, have a beautiful 4 year old daughter, and currently in Mexico. 🇲🇽🇲🇽🇲🇽
My daughter's birthday is Feb 10. She will be 4 next Feb. My situation is really complicated as we're in Mexico and have been here for almost 1 year 1/2 waiting for my husbands papers. (Don't judge me until you ask to hear my story) 
My questions... 
Should I put my daughter in school here (Mexico) with her being only 3? Is she too young for Pre-K at 3 years old? 
Should I wait until we go back to South Carolina within the next 4 months to put her in Pre-K? 
Should I wait until she turns 4 in Feb 2016 then put her in Pre-K Aug 2016? 
If I were to put her in school here with her being only 3, when we go back to South Carolina, will her school records be transferred or will she have to repeat Pre-K? 
What is the actual age a toddler starts Pre-K? 
What is the actual age a child starts Kindergarten
Little Eva, again she's only 3. 
Sorry, a lot of questions, I know. 
Thank you in advance for any answers. I'm stressing here. Big time. Muchas gracias.