Advice?! 40 weeks 1 day

Have been having pink mucus yesterday morning and a little this morning. Cramping both days. Tonight I took a bath and have had more pink mucus and increased cramping when I lay down.... I just keep feeling like I should get back in the tub and relax. Has this happened to anyone? Are we starting labor? I don't seem to notice this craziness when I'm sitting up right..😔