I’d like to add to this thread that the smell of a woman while ovulating does not only come from her vagina. In my experience, my armpits, head and vagina smell slightly stronger during ovulation (my bf has confirmed this), but it is the same smell as at all the other times of the month…only lighter during non-fertile times. I’ve also noticed that I almost always get a good response from males any times of the month but especially during ovulation (I currently do not use pheromone supplements). I do not wear anything other than all-natural deoderant, and try to go as natural as possible in all other respects (organic food, hygene products, ect). My head and hair smell sweet, and my vag smells sweet and musky.
Stay tuned for more description on the exact smell comparison, I want to wait for my bf to help me put it into words! 
Cheers!
SassyHoliday