Fuck em! Sorry - I have the right hump this week with just this sort of thing.
My friend and I are both director or thereabouts level in our jobs. I run my husbands business with him.
My friend has to get back ASAP - she has booked nursery, opposite her work (bonus!) from three months ready to go back. Under no illusion it will be hard, but necessary.
I only the other hand am still not 100% decided but I have started browsing for a part time nanny to do something along the lines of 4 mornings a week, from about one month - I don't have to 'go' back to work as I can work from home, so fairly easy there in terms of flexibility around babies needs.
One thing I have learnt don't listen to anyone who is either closed minded or poles apart from you. Just because you are becoming a mum like them does not make you the same!!
A lot of my friends and family are SAHM's and they love it, it suits them down to the ground, they are lovely fuzzy cuddly yummy mummies and I am so down with how they live their life. I am not particularly maternal, don't get me wrong I am not cold or not loving towards my baby who hasn't even arrived yet, but I'm not the cooey type and I am not at all wanting to stop working nor bee at home with my baby 7 days a week by myself (we live in an extremely isolated area and my husband works everyday, as I do currently, so I would literally go days without seeing someone - not healthy for someone like me)
I tell you what works well for me though is people telling me I can't do it - red rag to a bull - I Can and I WILL!
I will be back answering emails within weeks if not days, and I will be back doing a few hours a week for board meetings within weeks. If baby is 'easy' (I say that with some understanding having lived with my sister through three, very different, babies) then they can come to work with me for an hour to see everyone - and if they are not well that's why I am planning nanny care so I can pop out for an hour a few times a week to stay sane.
Someone scoffed at some of my plans (I should add at this point I have made plans A through to Z to accommodate all and Any changed feelings after birth, I'm not completely ignorant/bullish) and asked me if I thought I was superwoman. And I thought, do you know what, yeah maybe I bloody am - I work 70 hours a week, have horses ponies chickens and dogs, cook from scratch most days, swim/gym and keep the house ..... So yes, yes I am. Just like I think my SIL who stays at home with her three children is superwoman for always having happy fulfilled children in a spic and span house. What happened to sister hood?! Supporting each other's choices, and celebrating each other's differences. The last thing you want when the going gets rough is an 'I told you so' attitude - you don't need that sort of negativity in your life!
I am so sorry for the rant, as I say I'm a bit poxed off on this topic lately, but OP I really wanted to demonstrate how much you should be supported in whatever options you choose because I'm sure that going back to work and not is just as hard a decision as the other for many, so good luck to you.
Put your superwoman badge on and crack on!