I don’t know how to link a specific post from a different thread, but if you go to my grow journal on posts 25-28 there are some pics of my mother’s milk when it first started showing and I was questioning if it was Male or female. I believed it to be female and it was.
Search once or twice a day carefully looking for the tiniest and skinniest of white hair starting to show, normally in the top three nodes. Either way even if it’s male it’s to early for you to worry about it causing a problem or needing to isolate it, so just take your time and check around the plants.