Does it sound like I have a good chance of being pregnant?

Me and my boyfriend had sex 2 days before my period and he came inside of me. I got my period on the 26th of May and it lasted until the 28th that night I took the morning after pill which was 72 hours after he finished inside of me. My period pretty much stopped right after I took the morning after pill. I was supposed to get my period on June 23rd but it never came. on June 25th 5 days after my missed period I took a first response digitial home pregnancy test and it came back negative. It is now July 3rd and I still have not gotten my period. I have sore nipples and I have been bloated pretty bad to the point that its hard to button my pants. I am also getting a milky white slightly thick discharge that isn't bad smelling but different smelling then my usual discharge and there is more of it then I usually have. All of these symptoms are stated on the morning after pill but Im not sure if I would get these right after taking the morning after pill or right now like I am. The pregnancy test that I bought came with two tests inside of the box and it instructed that if I don't get my period after taking the first one 7 days later to re-test I will be retesting tomorrow but I wanted to know if there is a possibility that I am pregnant I know you can get a false negative but the test I took is supposed to detect the hormone before your missed period even comes......Does it sound like I have a good chance of being pregnant...Really freaking out me and my boyfriend are 21 and 23 we live together and are going on 3 years but we just can't afford a child right now!  PLEASE RESPOND NEED THE ADVICE!!