I think I MAY be pregnant. I understand there are probably a million different threads on here similar to this one but hear me out 
So... At the start of August I was on holiday & being out of a normal routine I stupidly happened to miss around 4 of my contraceptive pills. I know.... How can someone completely forget FOUR. I am USELESS with my pill and have been using the pill since I had my coil taken out about 4 months ago. I had some issues with the coil, hence why I had it taken out) Guess why I chose the coil in the first place... 
Anyways, on one of these "missed pill days" I had sex with my boyfriend. I've worked out this could possibly have been one of my most fertile days too (middle of my cycle)
Having missed these four pills I decided to just stop taking my pills altogether, let myself get a withdrawal bleed and start afresh with the next months pack of pills (Me & the boyfriend didn't have sex again during this time) However, I had NO withdrawal bleed until day 13 being OFF the pill. So, techincally it did arrive around the time my period was due thereabouts but in the past when I was on the pill years ago, if I'd ever miss a couple of pills my withdrawal period would show up pretty much straight away. When the bleeding started on the 17th August it lasted four days and was a lot lighter than what I am usually used too. It was definitely normal period blood, wouldn't call it "spotting" but I wasn't having to change my tampon as often as usual. So this rung some alarm bells..... I've been driving myself crazy googling "period when pregnant" etc... I know it isn't impossible to get bleeds when pregnant. Once the four days bleed had ended I began to feel really WEIRD. I woke up fine but I had to leave work early because out of nowhere I became so light-headed, super dizzy and exhausted. It was the same feeling of coming down with flu but NO flu, I basically stayed at home for two days and slept. Those two days passed and I was as right as rain! On the 25th August I took two cheap Boots pregnancy tests just to make sure... Negative. No faint lines, nothing. So I disregarded the whole "I think I'm pregnant" thing. However... TODAY (4th September) I've had the weirdest shooting stabbing pain in my left breast and during the past couple of days I've been having very watery white discharge... I usually get discharge throughout my cycle but nothing as watery as this. My knickers are constantly damp (sorry TMI!) According to my cycle I would be ovulating around now... However, during ovulation my discharge is normally quite thick and creamy, my breasts get swollen but I never have stabbing pains. I also have DANDRUFF (WHAT) I haven't had that since a child. My body is doing some odd things right now and I just wanted to get others opinions on it all... Any will do, please feel free to tut at me for being absolutely useless with contraception...