Swelling on ONE side of my face. Is it normal?

Mckenna • cant wait for our little nugget ♡
Swelling on ONE side of my face? I can't open my eye any bigger than it is... I just was at the OBGYN a couple days ago and everything looked ok...Is this normal? I have had a headache for a couple days now and he prescribed be a medication for it... I know for a fact I'm not dehydrated. I'm 31 weeks and 4 days.