it could be because they checked, but that looks like your moucus plus, I was 40wks 2days with my son and bled after having sex but I wasn't in labor they tried to send me home and I refused, I had them induce me no way was i going home gushing blood like I was on my period..

they checked my cervix last night. but when they checked me before it's never done that

@dasiray19,

May be a start of your plug coming out or a start of labor one or the two