I'd try not to get too concerned were I you, erin. The description you gave seems rather vague. Could be family as I suspect you'd assume, but could be a pet, could be someone you know vaguely, maybe the neighbour's cat. Well anyone really. And given that it would only be reasonable to allow a tolerance for getting it, that 18 months can stretch to, well what, 2 years ? 3 years ? With that lack of detail it's too easy to assign an event to the past prediction regardless. Now a name and a date, that'd be evidence of getting information from non-normal places, were it to come to pass. Not to mention speak volumes on the nature of time and the ability to be outside it observing.