35+4 with a mucus plug question

No picture!! Just a little TMI question. I've had some egg white looking cm with a brownish tint today. Lots of cramping. I was 50% effaced and 1cm dilated two days ago. Baby was very low and my cervix was soft. Haven't had sex in at least a week so it's not hubby's sperm. Could this be the beginning of the bloody show?