What’s wrong with me

I had my third daughter 6weeks ago and I just feel so down. I only leave the house to take my 6year old to school. I sit in my jammies most days, haven’t washed my hair in weeks.

Why do I feel like this. I feel like a failure as a mummy and a wife. I’m just so exhausted all the time. I am never happy, I never smile or laugh with my hubby anymore. I’m pushing him away and I dnt want that I love him so much but all I do is snap at him.

I was like this before had baby too.