Are these male or female?

[Greenethumb42]

Can someone PLEASE tell me if theses are male or female...your best quess..I'm running out of time I need to thin my grow out some..these are all from the same plant and it's almost 3 weeks old..I tried looking at pics but I can't tell...

 

[JuanCarlos]

I am going to say too young to tell.

 

[daTenshi]

My gut says female, based on it's position and on the shape.

 

[MickFoster]

Looks female but another day or two will tell for sure.

 

[Serpent]

Can someone PLEASE tell me if theses are male or female...your best quess..I'm running out of time I need to thin my grow out some..these are all from the same plant and it's almost 3 weeks old..I tried looking at pics but I can't tell...

thats a clone from the same plant? did you not harvest the mother plant or did you get the plant from someone or did you start from seeds

 

[Greenethumb42]

I started it from seed

 

[Serpent]

I started it from seed

ok sorry just checking i know how you feel when the room starts filling up you can run out quick

 

[OlderGrower]

For the record, those are great photos and I wish more people who ask this question would take such quality photos to help everyone decide.

Now that being said, I am in agreement with JuanCarlos. It is to young to say for sure.
here is a quote from one of the books I rely heavily on:
Female Pre-flowering
Near the end of normal vegetative growth,plants grown from seed develop pre-flowers. This is when female calyx formation initiates, and it is not contingent upon photoperiod. It occurs when a plant is old enough to show signs of sexual maturity, about 4 weeks of vegetative growth or six to eight weeks from germination. The pre-flowers emerge behind the stipule at the forth to fifth branch internodes. A pre-flower looks like a regular female flower; most have a pair of white fuzzy pistils. Pistils normally form after the light green seed bract part of the pre-flower has formed. Wait until pistils have formed to ensure the plant is a female and not a male. The pre-flowering stage lasts from one to two weeks. A little patience is in order now!
Plants grown from seed under a 18/6 day/night photoperiod will usually show pronounced pre-flowers before plants given a 24/0 day/night photoperiod. And under a 16/8 day/night regimen pre-flowers show more quickly and are often more pronounced.

It goes on but that is the important information you need to know.
Hope that helps some.