I'm writing a character who is pregnant with twins ...but it's in the 19th century, before the advent of ultrasound tests, etc. Does anybody have a clue how soon, or in what way, a woman in that situation would be aware she's likely to be carrying twins, rather than a single baby? Is there anybody on the forum who has had both, a single birth and a twin birth? I'm looking for some first-hand impressions as to how it felt. It's probably obvious once four feet start kicking, but is there any hint beforehand? Something that a mother would be aware of, without the benefit of modern science?