Long TMI post but HELP!... Pinkish Discharge

ShaKerra • Mom to a 6yr old Princess... trying for another Princess.
Hey beautiful ladies! As of today, I am 37wks exactly. I went to the ER last night for cramps, backache & constant BHs. My cervix was checked & I am only a fingertip dilated.
I know they say you bleed/spot after cervical exams but nothing occurred last night. I woke up this morning around 3:30am to use the bathroom & had discharge with a pink tinge to it. About 4 hours later, I had the same thing & my panty liner looked like the last day of your menstrual cycle. About 10 minutes ago (around 11am) it was a small stain like the end of a period but I wiped & still had the clearish discharge with pink in it.
Should I be concerned or do anyone know what's causing it to happen so much?