6w with ovarian cyst! Anyone experienced?

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Hello guys! I had my first GYN appointment yesterday and heard the heartbeat nd saw the beanie! But also they said I have a huge 5cm ovarian cyst in my left ovary. The doctor didn’t seem much worries as she said it occurs during pregnancy and should go on it’s own by 3-4 months. Only problem is if it increases in size or causes my ovary to twist. Anyone experienced the same ? When did it resolve ?