I just started birth control a little more than 3 weeks ago. At the start of the third week, I noticed a light/medium flow of brown discharge and I've had it everyday since. Today it turned red, but it's a week too early to be my period and it doesn't copper smell of blood, but I also have some lower back pain. Should I be worried or just wait it out until I'm supposed to get my period? Not sure if pregnant (did have unprotected sex in the past month) or my body is still adjusting to the pill. I'm on an estrogen and progesterone combination pill btw. Thank youuu