How do I help my guppy give birth

After Your Fish Gives Birth For many species, it’s important to keep fertilized eggs and newly hatched fish, or fry, separate from the adults. Some fish eat their own young while others eat the young of other species. Keeping the fish eggs and fry separate from the adult fish may give them a better chance of survival. Jul 13, 2019 (source)
Female guppies are usually in labor for between 2 and 8 hours. Labor is usually an uncomplicated affair with the guppy giving birth to between 40 and 80 babies. (source)
https://www.youtube.com/watch?v=dg1PV6zzTu4
There are various reasons why this happens: Fry get stuck in the birth canal due to a deformity or an overdue pregnancy (stress can prevent female guppy fish to release the fry); Jan 10, 2022 (source)
A guppy that is about to deliver may experience contractions as she prepares to push her fry out of her body. Contractions may cause your fish to look like she is trembling or shuddering. This is usually a sign that your fish is about to go into labor. May 26, 2021 (source)
Yes, they do. Though guppies are one of the calmest breeds and are generally pretty peaceful, they often end up eating their fry. This weird and disturbing activity is termed as filial cannibalism. What makes it even more puzzling is that you normally don’t expect nonviolent fish like guppies to behave this way. (source)
It is not normal for guppies to lay on the bottom of the tank. In my experience, there are a number of reasons guppies lay on the bottom of the tank and these include illness, stress, and poor water quality. Pregnant females may also lay on the bottom of the tank prior to giving birth. (source)
Number of Offspring A female guppy under optimal conditions can give birth every 30 days — and each batch of fry can range from 20 to 50 baby guppies. This combination of maturing rapidly, birthing live young and almost constant reproduction means guppies reproduce very rapidly. (source)