No. just wait you'll know. If your worried about them ruining your females males dont develop in one day so just tear it up when you start to see it.
Smell has nothing to do with it. I have 10 seedlings, and they already stink. Have to have a carbon scrubber on both my grow cabs...
If you're worried about pollen, you'll have until about 4 weeks into flowering to find the males before they pop open. Trust me, by that point in time, you'll know.