Need some help & opinions for first time 12/12 from seed grow. flowering

Whats going on guys. Little 12/12 from seed project going on here and need a little help guessing what week she might be into flowering. She 37 days old from seed and I know they like to veg a little before they bloom so it's a little tricky. First pistols emerged on day 26.

P.s
She looks a little young due to some pruning.

BTW, any LST tips would be helpful also.

Thanks

From my 12/12 experience I found I need to add on about 3 weeks to the flower time. So a 9 week strain takes about 12 weeks.

So about 1 - 2 weeks in?