Weird period

So when I'm on my periods, which are now only 2 days if that, it's mainly clear with red/brown medium spotting mixed in. The clear fluid is pretty heavy tho it fills a tampon and leaks out like a super heavy period but there's not much blood in it. Any one have an idea of what it could be while I wait on my appointment date to come up? My regular physician is clueless and suggested it maybe a sign of early menopause but I'm 28 yr old with no kids and I'm TTC.