Feeling Off

I'm 38 weeks and 4 days I woke up this morning with a backache and noticed a lot of discharge (sorry tmi) this morning when I wiped. My body was also a bit shakey I don't know why I never felt like that before. I feel like I have no strength it's so weird. I also feel off I don't feel like me. Anyone else going through this? Or went through this? Im a FTM and I'm not really sure what to expect.