Swollen ankles and throwing up

ma

I’m 35 weeks and my ankles starting to swell up. Not too extreme but u can tell they’re swollen. I threw up today also, I’ve been gagging all day. I called L&D and they didn’t seem concerned. Aren’t these signs of preeclampsia? Also after I peed and wiped I noticed snotty discharge, is that my mucus plug???? No blood