I had the same at about 12 weeks? and again at 16 - 18 weeks. Was advised just to rest and take it easy during that time.

Mine turned out to be implantation bleeding that just took awhile to come through, but DTD will definatley do it.. I remember freaking myself out becuase I scratched myself wiping after the bathroom and I saw blood.. but it was nothing heh. Good to call always to get reassurance. I did twice when it happened.

So long as you dont have any cramps or pain just put your feet up