Am I Pregnant??? I need some advice

Ok I'm apologising now for the This post as its a bit graphic. My husband and I have been trying to conceive for the last 3 months and this month I have had this weird like discharge. 
Three days ago when I wiped it was like snot/gummy discharge then day after it was a watery discharge then yesterday it was watery with the odd snot/gummy discharge when I wiped but there was two brown dots in the mucus when I had a look. 
Also I have woken up this morning with sore breasts. I'm not due my period for another 5 days.... Could I be pregnant? 
My cycle is every 19 days.