Baby aspirin regimen

Natalie
Has anyone ever been on a baby aspirin regimen for clotting but instead had opposite effects? I was put on it and i thought it was working! I was several days late, breasts were still tender and I thought for sure this was the month. Then I started bleeding heavier than I've ever bled before with tons And tons of large clots. I read that it can happen but wanted to see if any of you ladies have had this happen...