Custody of my child

I gave the custody of my 5 year old kid (boy)to my husband as at that time I was not financially stable. We have mutually filed a case and we are done with our first motion in July 2017, our second motion is in January 2018.I have visitation rights only,also we have mutually agreed on this that my husband will take his custody as of now and I will continue to have visitation rights only and after one year our kid will decide with whom he wanna stay so that we both would have no regrets later on that we didn't check this with our kid.In September 2017 I Moved to dubai as I got good career opportunity here.Its been 2 months now that iam not in touch with my kid and everytime when I call my husband that please let me talk to my son he says that your kid is not interested in talking to you , we are happy without you..Please don't distrub us by calling again and again he is not letting me to talk to my kid...i wanna know what are the possibilities that I have to get the custody of my kid ..?????? Please guide me on this as iam very stressed...I love my kid and just can't live without him...