Ghost period?! HELP!! 1 week late

Period last Saturday 4/15/17 and it is now 4/22/17. I have never been this late before in the last 10 years I've had my period. Lately I've been really stressed about an upcoming vacation in a week and I just want my period before vacation because it's with my boyfriend and ya no that would suck to have it during it especially cause it's in Florida too. Anyways so I was PMSing like normal the week before and a few days before I got mad additude like usual and I got my one pimple that shows up as well....but no bleeding....I'm so confused. I am also having lots of clear discharge which is normal to have I know that. I am sexually active but he doesn't end things inside me and he doesn't do that unless we are using condoms which we don't because..money...and we don't like it either. I also stopped taking birth control a year ago. I haven't taken a pregnancy test yet because I'm just not convinced that I am because I've haven't had any symptoms that's I am or just the fact that the changes of a preswimmer are slim. I'm not getting sick or having weird cravings. I've actually felt pretty normal. Like is this a ghost period?!