My bf and I are planning on having a baby. It's been 4 weeks now nd I thought I was pregnant until I started my "period" but I've noticed that it's different. The color is brown-like nd idk what to think. This is the time when my period should start but imnot sure if it's my period or not. I need some advice. Idk anything about miscarriages...I'm only 18. :(