beta low/slow rising and very light brown discharge

Kayla
So after a test showed up pregnant and started getting light brown dicharge I went to the doctor. First beta came back 537. Two days later another test came back 567. Brown discharge is even lighter now. Only when I wipe. Have all pregnancy symptoms. Sore breast, bloating, fatigue and all. Have no cramping and no pain. Does anyone have any ideas or have had this happen. I have another test to take tomorrow.