Question - Afghani - N L strain

TY for all veiwing and helping me with this issue but my question is this....i have 4 plants...2 of each strain....does anyone know if either of these strains show the female or male preflowers before the vegg stage is over with ? Its Day 25 of vegg and im going to keep the vegg cycle going 20/4 as i have until they have been vegged for 2 months switch the lighting and the time to 12 12 for another 2 months and have a very happy harvest ill get some new pics out when all 4 plants are atleast a month old...( damn 5 gal buckets suck carrying down stairs and back up lol ) Peace all....