I just found 2 hermies and I am harvesting in a week, will they hurt my other plants at this stage?
Only if the pollen sacks open…in that case every female in the vicinity will be pollenated. If they are outdoors, you may pollenate plants growing near by. The seeds will not be well developed in one week but the taste and potency will be negatively affected.
I would remove the hermie plants (out of an abundance of caution) if it were my grow.
I would also check for light leaks when lights are off (if grown indoors).