Mucus plug/bloody show

Brianna

Im currently 38 weeks & 6 days pregnant and I had a membrane sweep done at 38 weeks & 4 days, yet only had mild cramping afterwards and then it stopped. At the time I was only 1 cm dilated and 50% effaced when the doctors checked me. Today I believe this is my mucus plug / bloody show that came out this morning and I’m currently having back pains. Just wondering how long was it till most of you mamas went into labor after this happening?