Missy,

Crinone does not give you a false +ve. It is only progesterone, so it will not afffect a HPT at all. Pregnyl does, so unless you're on pregnyl, you can do a hpt for sure.

Crinone can delay your period. It can also cause you to have many symptoms of pg, like nausea, sore boobs, cramping, bloatedness etc. And this is because many of the symptoms associated with pg are caused by the increasing progesterone in your body. So taking crinone would have the same effect.

Good luck with your hpt! I used to be the hpt queen round these parts, but never got a +ve until after I had already had my BT, so whatever the result, take it with a pinch of salt, y'hear?