Betta Fish: is my josie a jose?

temporary tank!!!
i got this cute “female twintail half moon” cause she looked sick and i was hoping to give her a good last couple days ( fell into a rabbit hole learned tips to save her it’s been slowly working) but now that “her” fins are growing i’m questioning whether this is really a female? i was looking for the egg spot but i don’t really know what im looking for anyone have an idea¿