birth control and blood thinners.

Tori
I started BC pills in October, skipping placebos to skip periods. Long story short, had leg pain, and found out I have a blood clot in my leg. I stopped BC immediately a few days ago. 
I took a BC pill in the morning, but that evening started blood thinners, and that evening had bleeding. 
I'm just wondering, do you start bleeding immediately after stopping BC or could it be the blood thinners or a combination...?