Opinions??

Okay ladies so i need to know if I'm wrong!!! My son's father and i have been together for 3 years and there's been times we're we both have fallen off financially. Well i just had my son in August and i found a job and started working 4 months later meanwhile he did not have a job at the time. I never made him feel bad about me getting up to work while he laid in bed. Well recently i got pregnant again and was so sick that i couldn't work and he had found a job so we agreed on me staying home with the baby while he works. I ended up having a miscarriage and since then he has been the one working while i stay home with the baby. So today i found texts in his phone to his mother basically saying how i don't do anything and he has to do everything on his own and she even had the nerve to question my ability to take care of my child claiming that she needs to know where my head is at when it comes to her son and grandson!!!! When i was working i had to come home clean and cook and i never once made him feel bad i took my son from him when i got home and he wouldn't have to deal with him for the rest of the day unless he wanted to!!! He goes to work and comes home and gets to relax and he has the nerve!!!!! I just am so upset and I'm wondering if I'm over reacting? Sorry for the grammer i have my baby in my arms at the moment didn't feel like doing all of that.