My Bp jaw is weird

Don't go rushing out for bigger food or anything :)
Feed off what you have in your freezer and then move up to the next size. If he's still looking hungry after you give him one, maybe try a second. Or offer another 4-5 days later.

Do you have a scale (that measures grams) that you could keep track of his weight with? For younger BPs, it's usually a decent size meal if its 15% of his total weight.
So for example if your snake is 150g, multiply that by 0.15 and you'll get the approximate weight of an appropriate size food item. About 23g. Which is a pup :)
Here's a generalized idea of rat weights etc.

Pinks 3-9g
Fuzzies 10-20g
Pups 21-29g
Weanlings 30-49g
Small 50-99g
Medium 100–199g
Large 200–299g
Jumbo 300-399g