Metformin

Shay ā€¢ I am 23. Expecting my first 5/28/19šŸ˜ŠšŸ¤—šŸ’– Girl šŸ˜ā¤
I'm 20 and I'm ttc #1 I was put on metformin a couple months ago but haven't taken it yet. I want to start but I don't know if it works. Does it? And how would I know?