I am going through EXACTLY the same thing – my husband decided to leave when our baby was 5 months old (she is now 9 months) after 8.5 years together – absolutely devastated. I am finding it very difficult too but just trying to take it day by day and some are better than others. Does your husband ever take your son to give you a break?
I was going through similar situation. My daughters father and I separated when she was about 3 month old. Its tough because he wasn’t helping really from the start. He doesnt give any support financially so I have to find ways to make ends meet. I couldn’t afford childcare so I rely on her grandmother and aunt. But still I pay her aunt some money for food and transpo. It is so difficult but I don’t have the time to be tired because my daughter’s needs have to be met. I do not have my family here because they’re abroad.