Sex help.

I'm 8 days into flower, finally feel like i'm seeing signs of sex. Just want some second opinions, Are these dudes? I have them both in the same tent, if they are male could one have pollinated the other this early on?
One plant

another plant

Male, but it doesn't appear that any flowers have opened yet. So no pollination.

Ahh that's what I feared. This is my first grow I tried to germinate 15+ bag seeds only 4 sprouted and only 3 of those survived my noobness. But all 3 turned out male. I bought a few auto seeds a couple months ago. Going to start 2 of those next, they have to be female right?