In some areas of the world, women conceive naturally using their own eggs up to 60s and even 70s. It is considered to be linked to their diets.
Adoption is really nothing like having your own, adoption is to do with providing a loving home and parenting for traumatised children who will need relationships with their original family, or at least this is where adoption is headed. it is fantastic and well worth it, if done right, but would likely mean not being able to work or going very part time, and a huge dedication and reeducation needed to make it work. Not the same thing as conceiving your own
Donor eggs without a father will bring their own trauma to some extent - having a child which is genetically yours is different from having a child which is not genetically yours, obviously.
@DrenchSal re the above I think that there are groups of donor adult children who give their views which I think would be necessary reading here, to make this decision.
Other relevant things would be how young you are for your age, physically, how fit and healthy you are, weight, etc