AF due 3/13, bleeding after sex.

It is close to AF, so I am not sure if I should be worried. My husband and I had sex using a condom and no extra lube. I usually spot a drop or two, but have spotted much more. Does anyone have an issue with AF arriving early if you have sex close to her arrival time?
We started using condoms over 2 years ago when I was shopping and found a needle in a pair of pants at a thrift store. At the 2 year visit to the doctor, blood tests are all normal.