swollen vagina

I feel like I am posting on here non stop now that I'm getting so close to the end. I am 37 weeks and 2 days and yesterday I noticed what felt like fullness or pressure in my vagina well I had gone pee and it felt like the opening to my hole was swollen, not the entire thing just around the hole. I got home cooked dinner and my husband ran my a bath for me to relax after a long day and after my bath I take a shower to get clean and I feel down there and notice it is swollen. tmi but I definitely tried to stick my finger in to see if it was swollen or if I was crazy and I could hardly get my finger in. I haven't had any yeast infection type discharge or anything just pressure and the pressure is gone now. just swelling is all that remains. any suggestions?