Oh Kigga, are you sure we didn't work for the same people??? I had the same issues at my work! My bosses (also a couple) had me working 12 hours days during my first Tri because they had fired people but were yet to rehire and when I became so exhausted (add another 2hours onto that day for travel) and sick from working so hard I called in sick and was then conferenced called by the bosses to say that I was letting my pregnancy get in the way of their business and they were really disappointed that I hadn't looked after myself properly and that I shouldn't be doing such long hours and I nearly fell off my chair considering they were the ones that snowed me under with work so it wasn't possible to have a break of leave before 8pm at night!! And trust me it gets worse lol! I'm now at home on Mat leave and couldn't be happier to be out of there!

With regard to the cramping, I had something very similar in my first Tri, I wouldn't call it real cramping, it was more just a strange feeling in my stomach, didn't feel good but it wasn't painful either, just an odd sensation that would sometimes tighten.. I'm pretty sure it's just your body making room and doing what it needs to do! Only time I would be worried about cramping it if it was severe and you started to bleed!
I'm 34 weeks and still have odd pains and cramps and bits and pieces that send me running to the computer to dr google lol! But I know now what is serious and what isn't!