My wife skipped her periods for a month, me and her were playing on. She was on her periods this month. She was wearing 2 pants and inners with her pads as she was on her periods. I had nothing in my lower, I was dry humping her and ejaculated on her pants near her thighs. If a sperm touches the v-shaped structure of a women in her private parts. Not her vagina but the top of it, near the private parts. Is it risky?