Not feeling pregnant

Amy
Hi, I am 5 weeks and 3 days, love my big and heavy boobies, but other than that I really don't feel pregnant (4 tests would suggest that I am lol).. finding it hard to belive at the minute especially as I'm not seeing the midwife till the end of the month ... a few minor cramps every now and then ... but I feel like if anything they have got less ... should I be worried?? :-/ opinions much appreictatied x