It may be implantation bleeding if pregnancy just recently occured where the fertilized egg implants itself into the uterine wall, although if you are further along in pregnancy than about a month and it happens after sex or examination it's nothing to worry about if it is more than a little pink moderate to heavy flow and bright red get to your doctor IMMEDIATELY it could be a sign of a problem whatever concerns that you have during pregnancy talk to your doctor they have heard it all before so don't be shy hope this helps you if so reccommend me please Good Luck and God Bless!!!