Julie, if you are considering importing a gedcom, please be very very careful and do it just a few records at a time. Ideally, please don't import a gedcom. The imports, even if the profile has solid sourcing, make such a messy and hard-to-read profile that (in my opinion) it's really no faster than keying it in and doing a proper job of formatting in the first place. Doing it manually will really accelerate your learning curve on how to create and properly source & format WikiTree profiles and will also probably cut down drastically on potential duplicates that gedcom imports tend to create.
Remember, on ancestry you have your own personal tree that might agree with or conflict with the data in other ancestry trees owned by other ancestry users. On WT we all share the same, single tree so there should be one and only one record for each person/profile and we all need to collaborate on the contents of those profiles.
Best of luck and enjoy your genealogy journey!