This is my first grow and I have three 3.5 week old plants under a 400 watt MH lamp. A few days ago I noticed what appeared to be preflowers on the plants. I looked at them under 15X magnification and I didn't see any hairs but the preflowers didn't really look like the pictures of male flowers I've seen. My question is do female preflowers always have hairs from the moment when they emerge from the plant or is it possible that these plants might still possibly be female? I'll try to post a photo tonight.