This is what having a wee baby is about. It means you centre your life around the baby to start with. It seems a huge shame to me that you are wasting your precious time with this wonderful tiny new human being feeling resentful towards your OH. This time will not come again ... it will pass in a flash.
If you have a child, then appointments do have to be planned round child care ... that will be the case for many years to come ... it simply goes with the territory. It is not a reason to be resentful.of your OH ... unless he is refusing to help accommodate this.
New parenthood is very full on and that is not your OHs fault. It is just a fact of life ...
It will be the case that you have become efficient at caring for your baby because he is out at work and you have developed ways to do things efficiently. So he will feel out of his depth a bit.
I hear that you want him to step up a bit more, so you need to try and discuss this rationally with him and not in an accusatory/resentful way. You are both struggling to adapt to a hugely changed life and are in it for the long haul so need to try and get off on the right foot. Be specific about what you need him to do ... otherwise he is groping in the dark and just getting waves of resentment whilst not knowing quite what to do. Would you like him to do a night feed with expressed milk? ... give expressed milk in the mornings so you can have a lie in? ... take baby for a walk at weekends so you can have a shower in peace? He will seem a bit bumbling to start with, just as you were, so cut him a bit of slack and don't stand over him and criticise .. encourage rather than criticise.
It is hard ... having a new baby is hard. But you need to be the team that will nurture this new person into the future. You need to accept that a lot of the child care will fall to you if he is working more hours than you ... it would be the same for him if you were out working more hours.
You have not yet got into a routine together and this can only be achieved with goodwill not resentment. Put that aside and be clear and positive about what you need from him and how you see the future together as a family.
It is so sad that you can't wait to return to work. I know you are knackered and hormonal but this time will not come again.
Ditch the resentment and clearly and calmly explain whet your needs are and come up with a shared plan. There is no hint.in your posts that he is an unreasonable man. Remember that your resentment is largely about the things you cannot do at the moment ... it is not about him.
Please try and move forward in a positive way ... this is the rest of your lives and there will be lots of hurdles to come that you will need to tackle as a team.