If she doesn't poop between getting up at 5 and you leaving at 8, you will have poop in the crate, as you have last nights meal with breakfast coming after that - no way can she hold it forever. Do you come home at lunch time? How long does she have to stay in the crate before you get home? I'm assuming she is staying in the crate all night without a problem? Or do you still take her out between bedtime and morning? Sorry for all the questions, so many unknowns.
Without knowing what you've already tried, or what your yard/poop walk routine is, I would get up, get dressed, no greeting or sweet talk to your puppy, leash up your puppy and go outside. Take her to a place where she has pooped before, whether your yard or a walk around the block, go to that place. Stand there, no conversation, no play, just stand, let her walk around, in circles or whatever. Give her lots of time but zero interaction or fun. I use the word "potty" a few times, whether it's pee or poop. It's a "business" outing, nothing else. If she pees, say good dog! then repeat go potty again and wait and be still let her walk in circles. EVEN if you have a fenced yard, do this all on leash and no play. If she poops throw a huge party with fun and atta girls and have a few treats in your pocket and give them to her. If after an agonizingly long time there is no poop, bring her in, back in the crate and go about your morning routine. 20 - 30 minutes, try again. Same thing. Try every 30 minutes until you have to leave. Since she's so young, I would not withhold her food (besides, there's last nights dinner in the pike anyway). So feed her breakfast, with some water before you go to work. From here on out, if you've been putting her in the yard to do things herself, put a leash on her for all potty times. At noon or in the evening when she does poop on the end of the leash if you have a fenced yard, now is the time to take off the leash and make the biggest party ever. Ball, treats, jumping whatever really makes her happy. Every. single.time. Once she knows what you want, you will start getting it in the morning. The first time you get a poop in the morning before you leave, give her a pad or a blanket in the crate (if she isn't a destructive puppy) and that may make her feel like that's her bed now and she won't want to poop in her bed.
Lots of variables I can't address - fenced yard or walks, blanket destroyer or not, home at noon or not, sleeps in crate at night or not, sleeps in your bed or on furniture when you are home? What the days are like on your days off work? All these things would/could change what I'd do to encourage that morning poop. And finally, some dogs take much longer than others, but when you put in an effort, you'll get there!
Welcome to Doberman Chat from New Mexico! We love puppy pictures!