Kinda worried

Shaun • 23🌸. wife 💍. first time mom 🤰🏽💜

Got a ultrasound yesterday all I seen was the yolk sac as I know I’m still early 5 weeks and 4 days but they found a cyst in my left ovaries 4.5 cm in size . I was worried but the doctor told me that they go away on their own and the size of my cyst is small .. anyone else went through this ?