Hi P., welcome to Mamapedia!
First of all, congratulations on working toward your degree - it is not an easy task as a mother!
I am a double majoring and it was the best decision I have made. Every program is different and require a different amount of completed credits to graduate.
Originally I wanted to take one major, and then minor in something fun that I enjoyed and that would not be overwhelming (art, music, etc) - this way I would still complete enough credits without getting burned out.
Well, after meeting with my adviser, for just a few more credits than I would be dedicating to a minor, I could complete another major.
For example, to graduate with my degree I need 125 hours. 60 of those are solely dedicated to my major. Because my other major is closely related, I only need to dedicate 15 credits to complete a double major (or 12 if I wanted to minor). 3 more credits is worth it to me to be about to earn my bachelor's degree in 2 areas.
Weigh your options including the hours needed for the minor, the major, how much time you want to spend in school, etc and find out what works best for you! your adviser should be able to help you with this decision as well.
Good luck!