It seems like a reasonable approach, I personally would be worried about bleeding too much, and want to consult my doctor first.
During the first few days of my period, the bleeding can be worrisome but the clots are seldom larger than my hand when they spread out in the bottom of the bowl, and seem relatively soft. It may be that you are clotting harder and faster than I do and I can imagine where that would be painful. A few months ago I did feel labor like cramps, but that is very unusual for me and did not last for more than a few hours.