As above, I'm doing that stupid thing that we women do: drive ourselves crazy trying to figure out if we're pg way before it could show on a test. My symptoms are:
Weird pain in my rhs (I know I sounds like a nut job now, but bear with me: this was the first sign that I was pg first time around): started like someone was moving a knife in a slow spiral where my waist nips on the rhs, but gradually started to shoot pains down to where my womb is and up into my chest. Turned into more generalised lower back pain on the rhs yesterday, and this morning (I've just got up as I'm a shift worker), it's like having a really bad stitch where my waist nips in again on the right. Like I say, weird pains like this one that I couldn't attribute to anything in particular were the first sign of my first pg, and I've never had them since, so I'm hopeful. Anyone know what the hell causes it though?!
Nipples swollen - but only the nipples rather than the whole breast, though I think my breasts may have got slightly bigger (neither of which generally happen with me before AF). Also nipples more sensitive when DP touches them.
Montgomery's something-or-other (those bumpy things on your nipples) seem to be more numerous and more bumpy than usual
Dizziness and headaches - though tbf I had these last month and I wasn't pg 
So what do you think? Much chance? We had sex every day through my fertile period, after which I up-ended myself and lay with my legs in the air for a good half-hour 
. Also been using fertility lube.