Trying for a baby ?

Iam really worried me and my bf have been trying for a baby for 11 months now iam 5 days late for my period i have took about 3 very cheap pregancy tests but all come back negative iam never this late helppppp
I have not been feeling my self lately
* one day i fill really sick the next day i dnt
* i fill alot hotter than usally
*i am feeling alot tired
*alot of discharge
*i get really mood
* some days my boobs fill vert tender

please sone one helppp
xx