mucus plug!! help!!

Emma
I'm 34+3 and tonight I'm pretty sure I have just lost mine. I'm not sure been a first time mum. It was a blob about the size of a £2 coin. Had a very very pink tinge to it. Was this my mucus plug? I'm having quite bad lower back pain on and off now. It's far too early 😥😥 what will happen now?