Ok, so me and my girlfriend went skinny dipping yesterday in a freshwater river. There was a current but it was facing in her direction. I possibly ejaculated but the only time we touched was kissing and my penis touched her stomache once for about 1 second. Could she possibly be pregnant? Oh and she was also on her period and she had a tampon in the whole time (which was about 2 minutes that we were in the water).