Well, it seems like fertilization happened and we have a baby pumpkin. I'm still crossing my fingers because when growing things you should never have all your hopes in one fruit in case something happens. And as it stands right now, out of 4 female blooms this is the only one that hasn't been aborted (the pumpkin aborts fruit if conditions aren't right). I noticed that the stem has gotten lighter green and I don't know if the plant will abort fruit at this stage or not. It's been a bit of a challenge for this amateur gardener but the joy on Chloe's face when she looks at it has been worth it. It's not exactly cost effective as I figure this pumpkin has cost about $20 but we can say we did it, right?