I have started my period about 4 days earlier than I usually start, I wasn't even through my pill pack & today have had several times when I've had to urinate that I've passed a few blood clots. This is not a normal period for me & it is concerning. I've never had much clotting except for after giving birth to my children & I don't know what to think or do about it. It has even gotten to the point whee I feel I have to pee real bad & it starts to burn for a second or two prior to the clot. Any advice is welcome. Thanks

I'd go see my doctor.

Seeing a doctor, is important. It could be anything.