Swollen foot and rash? 32 weeks pregnant

Haley • Haley. Have a beautiful son born on Nov. 30th 2017

I'm 32 weeks + 4 & I worked last night a 9 hour shift and woke up this morning with a super swollen right foot and what looks like a rash. Anyone else experience this? Maybe my sock was too tight? Not sure. I messaged my doctor about it