LOSING MUCUS PLUG AFTER CERVIX CHECK???????

Ladies, I am 38 weeks tomorrow and I had my cervix checked today I am 2 cm dilated and haven’t lost any of my mucus plug until now I think.. when my doc checked me she really went in deep this time and it made me cramp after she said it’s normal so now I am curious because I just wiped and mucus came out with brownish color so now I am not sure if it’s because she checked me or if it’s part of my mucus plug I took a pic I know it’s gross and I am sorry but please tell me what u think.. thank you so much