Pregnant? Or not...

Ok ya'll so Im on day 34 of my current cycle. For about the past week or 2 I've thrown up maybe 3-5 times and experienced other symptoms. I felt like I was pregnant so I took a first response rapid result, which produced a faint pink line....at around 10 minutes. So the next test I take the next day is a clear blue which I get another faint line but still not bold enough for me to be convinced. (I know of Evaps and chemicals) SO I take my last clear blue this morning with second morning urine which happened to be a bit diluted on accident. End result was another faint line but the line looked more complete than the test before but still not convincing enough to me. I tried to schedule an appointment but my doctor will be out for weeks and the nurse recommended the Er but I feel its not that serious. Anyone have any experience on this??? Or any idea what could be going on. I would post pics but I am not on my phone.