Is there any way I can tell if the skulls may be too large to pass thru the birth canal without x-rays as I am elderly @ on disability @ can’t afford pay a vet bill at this time. What behavior or signs should I be aware of in the case of any complications or a life-threatening situation. This is her 2cd. litter. No complications witth the 1st. litter as she had a supervised breeding with another MinPin. Thanks so much for your time @ prompt response as she is due any time now.