anterior low lying placenta

So at my 20 week ultrasound I received a phone call from one of the nurses telling me that I had a Anterior low-lying placenta... she said that my Dr. wasn't concerned right now bc it is 2.3cm away from my cervix... she asked if I had any questions but at this point I had no idea what anything they just told me even meant and just said okay... they told me I am due for another ultrasound at 28 weeks and we will know more then...well obviously right after I got off the phone and I  look up what it means and I'm kinda freaked out now but trying not to stress till I see my dr on May 8th... are there any other mamas out there with the same thing? Is it not too big of an issue this early? Thank you all in advanced! ❤️❤️