I don't think we're going to be able to say what species of spider this is ! There are over 600 species in Britain alone and nearly all leave the eggs to hatch and the spiderlings to look after themselves. A great many species exist within the group we call money spiders, the very tiny spiders, too. All spiderlings are tiny. Spiders are not particularly maternal (and often the female doesn't live long enough for the spiderlings to hatch anyway). The nest shape isn't much help either. It varies a lot within species. Spiders usually produce a great number of young, emerging at the same time. That's to ensure that at least a few survive to reproduce. I don't think that evolution had planned for humans with sprays, though!