Hi there everyone, this is my first post so please excuse me if I don't follow all the right protocols for posting 
So I am pregnant (my first) and am massively nesting and in my preparation for our little girl I have come across a multitude of different products and I'm not sure if I need them or not...any advice is appreciated.
Gro-eggs: We're having the baby in a Chicco next2me crib for the first 6 months in our bedroom - do we need a room thermometer? And what's the benefit of a gro-egg over say buying a regular thermometer that costs less?
Gro-bags: These seem increasingly popular and are an alternative to sheets and blankets for the bed yes? Are they suitable from birth and any recommendations on how many you need to buy eg: 2 in each thickness.
Breast pumps: I am (planning) on breastfeeding as the main source of babies food is it worth me investing in a breast-pump in case there are occasions when I am not around to feed...are babies happy to have bottles with breast milk and direct from the source?
I am so sorry I must sound like a complete novice - I have the classic Rachel from Friends where I know a ton about pregnancy and labour but am panicking that I don't know enough about babies.
Thanks for your advice in advance.