I wouldn't worry too much just yet. There are quite a few posts on here recently with the same 'problem'. Our BP has yet to eat. Seems like this year our ol' Humphrey here is taking his time coming off of his winter feeding schedule also. It's been about 4-5 weeks now. When he refuses I try a few of our tricks and if that still doesn't work it's back into the freezer (the rat, not the snake) and we try again next week. I don't even bother him in a day or two, I just wait until I rotate back through again to the next regular feeding cycle.