Cyst on ovary in pregnancy?

šŸŽ€ Nat šŸŽ€ ā€¢ 2 M/Cā€™s 2018.... My šŸŒˆ baby girl šŸ’– due May 2019 ā¤ļø

Had my first u/s today! Baby had a heartbeat! 7+ 2 due may 22nd. They mentioned that i do have a 6cm cyst on my right ovary, i am quite concerned but heard they do usually go away. Anyone else have this or had one in previous pregnancies?