hi dear,
can i ask you something? you mentioned that you are leaving the baby for 2 or 3 months. so, i wanted to know, have you tried to speak to your employers and share about your home situation? to ask if they can allow you to start work after those 2 3 months? I am not sure what is going to change after these many months, so that you will be able to bring baby back to you (which is great!!!) :)
if possible, look for a good day care near your work area. i understand your fears, but there are some really good ones that allow you to keep a live track of your baby through an app on your phone. maybe you can consider it since it is only a few months? if not, i would say please be strong and understand that what you are doing is for the betterment of your family, and this is just a phase where you are letting your baby bond with the grandparents. don't think so much, as it will only make you sad. all the best