28 weeks, should I call L&D?

I've noticed a significant increase in wetness/wet discharge. Especially when I've been having this severe pelvic pressure that feels like I can't stand on my right leg. It has me hunched over and has been happening since last night but not in a consistent pattern. It doesn't ease up even when I lay down. My tailbone area has been a bit sore as well.  Should I call L&D or is this normal?