THICK DARK BROWN DISCHARGE FOR ABOUT 3 WEEKS????

Hey, girls! I need help. 😔

I started having a thick dark brown discharge since Dec 28 2016 until Jan 16 2017. It started really light so I just used a liner but in the middle it became a lot more but not enough to fill a pad. I didn't get a normal period.

It stopped on Jan 16 2017.

Now it's back and I'm really confused. Been looking it up on the internet but everything says I could be pregnant.

I really need help and has someone experienced this? Did you get pregnant? Or was it anything serious? 😭