Cysts

Juliette
I went in for my 6 week 6 day ultrasound yesterday. My little bean is 9 mm and has a heart rate of 137. I'm super happy, but a little worried because I was told I have three cysts on my left ovary. One being the size of a small clementine. Has this happened to anybody else? Should I be worried? Would love to hear stories and advice. Thank you ladies. :)