Yeah they have just had a grow spurt imo bro and will probably start to really take off now.
Did you transplant recently? Looks like they were a smaller plant (In smaller pots) and now they have more room
to grow and that's why there stretching?
Just keep an eye on them when you switch to flower. No danger of herming at that stage. Just don't
stress them when you switch to flowering.
Just let them grow and veg out for now
Peace