Blood clot

I had my baby less than a week ago I was released the day after, when returning home I basically went to my normal routine of cooking, cleaning ect. Last night I went to the bathroom and felt a huge jello like clump come from my vaginal area. When I looked it was a huge red blob. It was the size of a golf ball.. There was never a discomfort feeling until the middle of the night when I got up to use the bathroom I felt like I was craming I took my pain meds and it knocked the pain right out. This morning I feel no pain at all. Should I go to the emergency room or wait till Monday to call my doctor?