I was watchn one ep each Saturday then i went to watch it yesterday and there are 14 episodes instead of 5. I finished it up but does that mean next sAturday there wont be any episodes? Whens the next group get released

You are going to have to wait until the next blurry release or when toonami catches up
whichever happens first

So might be a bit till next flurry?

First bluray was just released which contains the first 13 or so episodes

I don't think there is a release date for the 2nd half yet so either Toonami will catch up before the 2nd half is released or the 2nd half will be released in a few months.

If you don't want to wait you can watch the series in Japanese with English subtitles in basically everything from Netflix, Hulu, Crunchyroll, etc.