I know this sounds dumb... But recently I've switched my pill brand to a pill with three different hormone levels, and stupidly missed one in the first week. I now cannot stop bleeding despite making up for it with the pills since then... I also found some left over ovulation tests I had (still in date) and thought I'd take them on and off to see if they can let me know what's going on with my body... At least in that sense. These are the three I've taken and their results;