today I was told I have PCOS

Ke
Hey All,
Today I received some news from my fertility Nurse, I have PCOS, I'm unsure how I feel about this... 
I am 28 years old, slightly overweight and have been ttc for nearly 2years.
I partner has 3 beautiful girls with his previous relationship and I do love them like they were mine... (but is not the same)
I have been started on metformin 1 500mg tablet everyday then increasing every 2 weeks until I'm taking 3 a day... 
I was just wondering if anyone has tried this drug and how did it work??
Thank you xxx