Slight cut on cervix

Georgia
Hi ladies, I'm looking for a bit of info/advice, if possible.
I was in the MCU this after due to a suspicion that my waters were slowly leaking, they aren't. 
However, when the nurse examined my cervix, she did tell me that I have a small cut on my cervix which was bleeding? She said it was nothing to worry about but I'd love to know how this would come about and what it means? 
Please bare in mind that absolutely nothing has been inserted into my vagina for atleast 2 months lmao. (Scared SO, feels weird about the baby, blah blah blah)
Thank you!! X

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