When your checked it can loosen some of the mucus plug, and cause spotting, it sounds like that's what's happening, generally you'll lose quite a bit of mucus plug before you see the bloody show because the bloody show is coming from your cervix. You can also lose quite a bit of mucus plug and it can regenerate itself, if you're showing no other signs of labor, I wouldn't stress about it! I hope he stays in there for a while longer for you!
I'm expecting my third, and lost my mucus plug and bloody show 2 weeks ago! I figured labour would come on right away but here I am, 40+6 and waiting to be induced. So I'm sure it could go either way but at least for me it's certainly no indication of immanent labour. Good luck girl, I hope you have an awesome labour and delivery!!
Awww our baby showers are on same day. Hope ur Lil one waits until.after ur shower to come in2 the world