Anyone else?

I went to the dr for my 20 week scan and baby was healthy and growing well. He weighed 12 oz and was wonderful they said. But they said that I had a low lying placenta and they wanted to see me back about 27-28 weeks to make sure all well and that the placenta has moved up. I'm a bit worried about that. Has this happened to anyone else and everything been okay? Please let me know your experiences! But I'm going to attach pictures of my little Grady Lee 💚💙 I'm just too in love not to share!