Low plcacenta! I am freaking out

Neisha • Mommy of 4, my angel baby arrived on 5/11/2020 engaged to the love of my life 💍

I got a call from my OB doctor at home after I did my visit that on my 20 week scan my placenta is low but at that point my cervix was long...I began cramping yesterday evening and swear there was a little light pink spotting on the tissue. I just wake up and feeling a lil discomfort in my belly and back again but no spotting I see. I am so scared I might miscarry. I have been severely stressed the pass few days. I honestly think I might go to the ER and get monitored to make sure I am not contracting or anything. Anyone else have this issue before?