[Harmony♥]

Since it was only ON her vagina, I highly doubt that she'd be pregnant. When sperm hits air, it usually dies off pretty quickly. Also, since you're unsure of whether or not you actually ejaculated, I'd say that the chances are pretty slim. In order to get pregnant, the sperm would have to find it's way into the vagina to fertilize an egg. Since she had her period this month, just about a week and a half ago, I highly doubt she's pregnant. Even if she were, she WOULD NOT be experiencing pregnancy symptoms so soon, so I think it's safe to say that this is stemming from something else, like the cold or the flu.