Hi, my ds1 is a bit older than yours he's two and a bit, and ds 2 is 4 mths. It's very scary starting nursery ds 1 has been going since 13 months. It took him a while to settle, but made a really string attachment with one member if staff in particular which really helped.
I used to manager a nursery so it is proberly easier for me as maybe feel a bit more comfortable, what are you worried about. I was worried about a whole host if things. I won't list them all, but I was really worried about him being poorly there and him getting lost. Both really silly but they were the two that I thought about the most.
Ds1 loves nursery and is still going while I'm on mat leave but I know at some point he will have to come out due to the cost.
I only worked three days, and luckily I became pregnant with ds2 quickly. I hated working three days a week, as although it was a work/home balance I didn't feel it quite worked for me.
At work I was given enough work for a full time role, so struggled to get all the work done, and felt that I would come in on weds with piles of work. But I'm sure thus isn't the case for everybody and some people would love to be able to do three days. ( incidentally I don't get on with my boss so I think that might colour my view)
I'm already worrying about what happens when my mat leave is up as I really can't see a way to work but be able to afford child care.
You said you were thinking of leaving to look after your ds, why is that?