qod - you could try this...
FAIL SAFE TEST!! this is going to sound wierd but there is a plant that will solve all ur problems You need to find a Dandelion Flower (weed actually) with very large leaves pluck as many leaves off as many dandelions as you can find you need the leaves not the flower top take them home now in the morning urinate on two of the leaves then wait about an hour if RED BLISTERS appear your pregnant ok store the other leaves in something they wont dry out in. It is about 99% acurate even if your only about 2 weeks late but I read ur thing if your as far along as you say you should only have to wait about 10 mins but give it about an hour....
got any dandelion leaves about?