I'm not vet, but I agree with what they have said. I had my BP about 2 months before she pooped... it was the same night as her shed... and yes... when they do it, you will know. You're neighbors might even know... LOL...
FWIW, mine then didn't poop again for about a month and a half until her next shed. Now that she's been on rats for a while, she has pooped a little more often.