You must be kidding --

After "与现在男友交往两年半，前一个月才发现他在中国有妻子和小孩", you still think to stay with him? How old are you? How many 2 and 1/2 years (or even longer, if you wait 1,2,3,...years for him) you have before you realize that your biological clock is ticking so loud that you have to choose between being a single mom or never be a mom?

Dump him, right now. If you are my sister, I will...