Thanks for posting your question here, I will try to answer it as best I can.
One of the effects of aspirin
is that it reduces the clotting capacity of your blood, sometimes we want that and thats why prescribe it to patients, other times it because of its other features.
In your case you are bleeding too much, that is shown by the bruising and excessive bleeding during your biopsy
, as such yes it is a good idea to discontinue the aspirin for now because it can you to die by blood loss.
If you're worried, give your cardiologist a call and I am sure he will agree with this step, as it is the most logical one.
Once we have your blood report back, hopefully we can diagnose what is wrong with you.
I hope this answered your question.