Some girls only used half a tube but I tend to get dryer during ttc (apparently that's an issue for a lot of women..who knew! lol)..sorry for TMI so I'd use the whole thing.
When I bought it, I ordered the one with the applicators. I know they also make Pre & that's just something you apply to the outside like KY & you're not able to put it up inside of you.
I bought my Pre Seed at
Early-Pregnancy-Tests.com