Frustrated...

My significant other and I are TTC, however, we have recently (due to unforeseen circumstances) have been apart. The last time I had sex was June 17th, and I have not had a period since then. I took a pregnancy test on what would have been the last day of my period, and it was negative, and although I'm not happy, at least I knew! But for the past week, I've had all the hallmark signs of pregnancy (nausea/vomiting, crazy cravings, being overtly emotional etc) ...I'm just so frustrated right now...any advice/suggestion?