Pregnant and ovary cyst

Sholes • Due date September 14 with a cute princess.... First baby
I went to the hospital for my first appointment, did an ultrasound, and 5-6weeks pregnant , detect am having an ovarian-cyst(60cm), i dont wanna lose my baby, ttc 10mnths before God answered me. But Dr said no harm now but I don't know later........ Am really confused and scared.