I don't think I would, but I don't have a very clear idea of the service you're offering.
I mean, if you're offering to take huge, exhausted pregnant women in desperate need of a break for a calm serene shopping experience where they're treated like VIPs and given foot massages while you demonstrate cots, test-drive prams, model slings etc, then whisking them home in a limousine and arranging for all the stuff to be delivered and the furniture assembled, I can see your point, and there may be some moneyed mums who would love this kind of day out.
But if the women are 'busy' ie time-poor, will they be able to take the time to do all this?
Or are you going to offer products/services in the customer's own home? Take them a catalogue of 'nursery room sets' and ask if they'd like the pink or the blue? Will you be making a point of sourcing hard-to-find designer items, like minimlaist cribs, from abroad? Will you (and this may be the clincher) do an Ikea run for her?
To be honest, there is so much information and so many retailers on the internet already that mothers-to-be are currently able to do research, read consumer reviews, make informed choices and purchase nursery goods (often at reduced prices) online whilst sitting at home in their pyjamas with a cup of tea.
The most important bits of the acquisition of nursery goods, being in my experience a) fingering the tiny tiny vests and socks and b) gazing at the nursery when it's all decorated, are not things that I think an independent consultant would actually be much use for.
(NB you do realise you've posted this in Travel? You might get more replies in Products, or Pregnancy)