UPDATE: Husband left me today

This morning I woke up to a note on my pillow saying he wasn't sure this is what he wants for his life. I'm 20weeks pregnant, we have been married over a year. We have never had major issues. In fact we JUST got back from vacation on Sunday? I am completely blind right now. 
**Four days gone, still not around, I gave him his space and gave in today. I called him and he said he went to Arizona to stay with his sister and clear his mind. I'm still blind as to what is going on between us. Everytime I asked if we were okay, or if he was coming home he avoided giving me an answer. I know it's only been four days but I'm not sure if I can last much longer. I need him, but he doesn't seem to feel the same way. So I told him if he ever needs anything that I will be here when he wants to return, and he said he appreciates that but isn't sure when that will be. Thank you all for the kind advice, but right now it's in Gods hands. I can only pray for the best.