Sign of Preflower

[DeVeill]

Three of my plants are showing sign of preflower about 3 days ago. They are on their last day of week 3. I am pretty sure the first one is female cuz it's got white pistill coming out of it. The last two not really sure if they are female or male.
Can you tell??

 

[gangsta bud]

second not tooo sure yet , but it looks mostly male bcuz ofthe lil ball shaped figure between the stems , in about 2 days u shud b able to really tell with both of them

 

[bombbudpuffa]

I agree with GB. I think they are male(2 and 3) but you'll know for sure in a few days.