Help!!

Today is 8 days since my last iui. Day 5 and 6 I had some cramping and tightness in my uterus area and I also had some thick white discharge about the same as when you ovulate. Drs say it is a good sign but not a guarantee. Day 7 and 8 been feeling a little queasy everytime I eat anything but it goes away. Also my body temp has been up to 99.4 or higher. Any one have similar signs and ended up with a BFP?!? Took a test and it was BFN..