Is she (auto)flowering!?

It's probably nearing approaching 10 days of flower. When you see preflowers, it takes about 7 days for those to grow, so flower started about 7 days before you notice them. While preflowers can show up invege it's pretty difficult for that to happen with an autoflower, unless it veges for 6-8 weeks before flowering. It's either a mis-packaged seed or you are accidentally giving 10+ hours of uninterrupted darkness. high RH would not cause flower in a photoperiod. a long dark cycle causes flower. Preflowers - the individual calyxes at growth nodes (each branch) that are first to be seen. normal flowers - pistils that show up at the bud sites in bunches. Pistils at the terminal bud of any branch is not a preflower. preflowers are not part of budsites, just adjacent to them.. they often get enveloped by them by the end.