First of all, hello! I'm new to this and would like some input and advice

I had my last period on the 10th June, and my cycle has been pretty regular this past year (since I have been bothering to track it). It usually comes every 42-47 days but I haven't had one since. 
As I am not actively trying for a baby - though don't get me wrong I would love it should one happen to surprise me - I'm not exactly tracking when my partner and I have had sex. I know we have since my last period, but have no idea when so cannot calculate if it was within ovulation times.
Anyway, my period is now at least a week late (counting from 47 days, although the average is 45 for me) and would have been due on the 27th at the latest. I usually get terrible period pains just before my period and haven't experienced any, although I have experienced a strange 'pushing down' sensation that gives me little twinges every now and then if anyone can relate to that haha.
I had the cold (sore throat, headache, slight cough, lots of sneezing) that started on Friday (28th) and ended on the Monday. I know that the flu can make your period strange, and although I was quite ill with it, I wouldn't say it was bad enough to miss/irregulate my period. Also, supposedly it only upsets your period if you are ill during the ovulation period, and by my calculations, I came into contact with the cold after this - hence why I had it after my period was due.
I have had WAAAAAAAAY more discharge than usual, sometimes white, sometimes clear and sometimes a mixture of both. I threw up a little in my mouth 2 nights ago after feeling nauseous - which comes and goes throughout the day(s) - and am also extremely exhausted with emotions that seem to be all over the place. That's all of the 'pregnancy' symptoms I appear to have at the moment, should me being pregnant be the case.
I took a Clearblue pregnancy test that I bought off eBay on day 48 (1-3 days after my period was due) and it was negative. I have since taken another 3 Poundworld tests (the last one being today) which were also all negative.
I have absolutely no idea what is going on, and it's driving me crazy. All I want is my period to arrive or for two lines to appear on the test stick, can anyone else relate to this?
I need a glass of wine or five because of the stress and I don't know if I can have any!
