Hi Tammy,
Welcome to a wonderful journey of discovery about the guitar and yourself. I'm a left hander as well, I tried learning right hander on an electric, and I just couldn't get it to work.
I found my rhythm came easier using my left hand as the strumming hand. It was more comfortable for me. Try it right handed, flip the guitar try it left, see which hand keeps the beat better. That's probably your stronger strumming hand.
If you've got an acoustic well you can always just turn it over and re-string it. And then it's left handed.
