The PDM will give you an occlusion alarm, but sometimes it takes several units for it to detect.
What were you using before the pump? Injections?
Several people have noticed a slow start-up on a new pod. This has happened to me too.
Is it late where you are? It might be good to abandon the pod and return to it during daytime. For your first few pods, starting it at night might not be the best idea! Once you become comfortable, it will be no big deal.
Just me, I'd bail on it, and try again in the morning. If you take it off, don't forget your basal injection!