it's fine but that won't be a micro niche
It could still be a micro niche site but it will not be a micro site, there is a difference. But for a MNS after a while there will be no much content to add. Go for it and start a MNS with at least 10 pages, it would be better than just 2.
I have a small site and the first week I posted 5-10 articles and had no problem... now Google is saying I have over 60 pages indexed and the traffic is increasing day by day.
5 to 10 is absolutely fine, as this is humanly possible, it only starts getting a bit dodgy when you are uploading like 500+ articles a day and then you will penalized if it is a new site. If you continue to do this you will probably be rewarded due to having a continually updated site.
Good luck!![]()