I'm 34 and 6 months pregnant. My son is almost 12 and its taken this long for me to conceive again. Today, for some odd reason, my vaginal lips are swollen. I mean it looks like I got collagen injections. There's no itching, burning, or odor and it doesn't hurt. It just happened in the last few hours and I have no idea why. Has this happened to anyone else before? My next dr. Appt is on the 26th and I know to go to er if anything happens other than the swelling, but is this something I should be worried about now?