Was it wrong of me to leave one group for another?

I have to do an important group project, and at first I joined two people but they hadn't done anything on it yet. Then, there was someone who didn't have a group (it needed to be group of 2-3) and they asked me if I could work with them. I agreed because I felt bad, and explained to my original group that I had to switch. After like 2 days, someone else joined my new group. Now I feel bad for the people I originally left since the reason is no longer valid. I thought all the groups were made except for the one person who asked me, but apparently not. I know my old group might have some difficultly due to language barrier. What should I do about this?

Was it wrong of me to leave one group for another?
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