TMI - need advice.

If you are not ready for Too Much Information, turn around and do not read... But I need advice.

Dh and I had NON FERTILE time Sex today, afterwards I spotted. I NEVER spot. So being I am 10DPO and charting. Do I note the spotting on my chart? Or do you think it was from the sex, BTW it was not Crazy sex, just your run of the mill sex.

Do you think I should inform the DR, he said call if I get a BFP b/c of my progestrone being so low.

Advice?