I am 26 year old women, married since 3 year.last...

I am 26 year old women, married since 3 year.last 1 year we are planning to have a baby, unfortunately till last month I am not pregnant.my cyle is 40-45 days.after my last period we planned very well and mated 2days interval.my last period first date was on 11th july. Till 6 augsut we continued same process. On august 8th I felt Sevier paint on my nipple and slight pain on balance part of my breast also. and my discharge was watery . I thought this time conceived. Then we stopped mating.now 14th august till now I have the pain.but no more signs i have, no tired, no feelings to food and smell. Not feeling anything special to my stomach also.now my discharge also changed to cloudy thick also.now I am very confused. Is this pregnancy or anything else.I need one advice regarding this