I had unprotected sex on May 29th and he came inside me. I have been extremely moody recently like crying because my cat wouldn't come inside and little things like that. I have seen a little white discharge when I take off my underwear. And the last two days my breasts have been sore when I put a little pressure on them. I was supposed to get my period today but it is so irregular there is no telling it I will get it this month. All the at home pregnancy test I have taken have been negative. Is this because it is too early or am is this all in my head and its just because I am about to get my period?