Heel pain..

Ju
I'm 39+6 weeks and for the last 3 days the outer side of my right heel has been hurting me. It seems worst when I first wake up in the morning and stand up on it (sometimes i cant even walk on it) or after I've set down for a while and stand up.. Its not swollen or red, it just hurts.. Anyone else have this issue? It seemed to happen out of no where..