WARNING TMI PHOTOS

My BF and I have been trying to get pregnant and this morning i believe is the day I should have gotten Aunt Flo. And I believe I did get Aunt Flo because this morning I woke up and started bleeding. Well I get to work and noticed I’m bleeding heavier then usual and was going to put a tapon in. When I went to the bathroom to as I went to sit down something fell out of me. And I thought it was a blood clot till I see something white floating that is attached to the clot. Did I just had a miscarriage and not even know I was pregnant? Or am I overly thinking this and it really was a clot????