It doesn’t look like your plant has showed any signs of sex yet. When it does show it would be at the branch nodes right by the stem. Either it will develop a small sack that has white pistols coming out for female or it will form a cluster of little sacks (male).
If this is grown at your window it may take some time for it to express but keep on checking the spots I’ve mentioned by the stem.
You will have a little bit of time to discard the male if it does turn out to be one so don’t worry too much about it.
Hope this helps.