Looks like a week or 2 at least left..
See if it's still putting pistils out in a week, and of course check the trics with a jewellers loupe.
Looks like its got to fatten up yet so I'd say 2 weeks at least.
...Are they regular or Auto? If Auto's they could be runts.
I germed about 60 auto seeds from good seedbanks,
and the amount of runts and dead seed was shocking.
Total waste of money,time & effort.
Hacked to Death..