Hi, I have missed 2 periods my periods are normally every 36 days and i dont miss them at all!
me and my boyfriend are actively trying and have been for nearly 2 years. 

i have taken a total 6 home pregnancy tests but never taken them in the morning. My last two tests was last night and they came back negative. 

i have the metalic taste in my mouth ( it tastes horrid and like metal )
swollen breasts
over tiredness
and slight pain in my stomach at times.
tight stomach

Last month where my period was ment to be i had a brown discharge on and off for 3 days?

Im really confused and need help

PLEASE