1 leg swelling

I am 36wks 5days and noticed last night that I have swelling in 1 leg, but only the 1. Calf, ankle, and foot. Is this normal? Just had my 36wk check yesterday morning and bp was up to 126/83, which is elevated, but my doctor said a slight elevation is normal for the last month. I always feel kinda awful and sickly, so I’m worried I’ll develop preeclampsia and not recognize the symptoms until I’m in the danger zone. My doctor just went on vacation for the weekend, so I can’t ask her about it until my next check up on Monday.