Oh love, I'm so sorry you are feeling rough.
I have a 7yo son, a nearly 4yo son and a baby on the way and let me tell you, being a mum is the best and hardest job I have ever done. Especially at the start, you are still getting to know each other and bub is learning about life and what he likes and doesn't. See as long as he is fed, clothed and gets cuddles (and clean nappies), that is all he really needs. His choices and preferences will change as he grows, we are just on this rollercoaster trying to keep up with them.
Sometimes you'll feel amazing, sometimes you won't, but as long as you love that little baby and tell them all the time, feed him and cloth him, then my sweet mama you are doing amazing! Best mum ever.
Parents/mum's put a lot of pressure on ourselves (so does society) when we become parents. Our houses must be like a show house, the never ending washing must be done, we must look amazing and do everything right or people might judge us and say we are failing, but I will repeat this important fact - as long as baby is fed, healthy, clean and loved, who cares about the other crap. It's just stuff, we'll get to it.
I'm currently sitting with a new nuttela stain on my top and dishes needing done, but my nearly 4yo wants a cuddle so know what I'm doing? I'm laying on the sofa cuddling my wee boy. The rest will get done but he needs this and honestly so do I.
I hope you can feel better my love. If this feeling continues, speak to the health visitor or a family member or friend. I am a firm believer in keeping up on ones mental health. I believe we should put our mental health before all others, let me explain: I had sever PND after my first born, I learned through recovery that if my mental health isn't good, then I can't be the best mum, wife, daughter, sister, friend etc to the people I love. It's the only thing I will ever be selfish about, but for good reason. So make sure you talk, be honest with the people in your life.
Others who say they are 'fine' aren't really, been there, done/said that. We're all just scared of being judged as a parent, I'm not anymore, I love my kids and they love me, I do my absolute best and that's all that matters, I know you will too.
I hope this helps, even a wee bit. Sending all the love and best wishes to you and wee one. Xxxx