Is this it? Please help!

Nooshka • 9/6/15 💙
Today I am 40+1.
Three times in the early morning I woke up then realised I was having a Braxton Hicks, coupled with backache and (sorry TMI) feeling I really needed to do a big poo. Every time I got to the toilet I just peed but the backache was worse.
Then an hour ago I lost my mucus plug. I now have constant backache and still feel like I need to poo.
According to the NHS website this is the start of labour. I've been waiting so long and had so many days of Braxton Hicks recently that I'm trying not to get my hopes up.
I know that you can lose your plug weeks before labour but the other signs are encouraging, right?