Are you sure about that?
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3987372/
https://pubmed.ncbi.nlm.nih.gov/8836161/
https://pubmed.ncbi.nlm.nih.gov/7938363/
https://www.nature.com/articles/260520a0 (while you can't access this article without scientific or educational access, the test performed here had 13 women and 16 men wear T-shirts for 24 hours without bathing or using deodorants. The armpit regions of the T-shirts were then sniffed in a test session where (a) the subject’s own T-shirt, (b) a male stranger’s T-shirt, and (c) a female stranger’s T-shirt were presented. The task was to identify their own odor and then to guess which of the two remaining odors came from a man. Nine of the 13 women and 13 of the 16 men performed both of these tasks correctly, leading to the researcher to determine that humans do have the capability to identify an individual and determine his or her sex by the odour of an article of clothing. Note that this is separate from the function of smell being a pheromone-like attractant, since that requires other cues; basically, how someone's scent can repulse you, but if you are interested in them sexually that same scent can be attractive, instead, as it is parsed differently from a functional stranger's scent. I have, however, included it here in defense of human olfactory capability being strong enough to provide scent-based cues in general, even though we are far more oriented on visual and auditory stimuli.)
Actually, yes we do. One of the articles linked above actually addresses that. Furthermore, the vomeronasal receptors have a lot of similar receptors to regular olfactory receptors, so it's not like our noses can't catch them at all even with a vestigial version of that sub-organ.