如果孩子绝大多数都是你在带的，without a doubt

get the child's custody, the more you take care of your children, the more likely you will get the custody of both children, 除非你本身有问题（如吸毒，暴力， 外遇或严重的健康情况等）
as for the spouse support, it's more likely the court will order him to support you for maybe one year or two, or maybe a few years more( it depends on the length of your marriage, and also your age...)the court will expect you to become independent after that period. and he has to pay for the child support until the child turns 19.
现在你要做的是收集家里所有关于财务方面的资料，还有要防止他转移财产等。 如果你们在财产分割和孩子抚养权问题上有很大争议的话，务必要找一名很好的律师帮你。