Hi doc! I and my girlfriend were having intimate time, ( both of us are virgin). However during a breif point of time, I started to penetrate (partially) and at the time of ejaculation i pulled out. Subsequent to ejaculation (around 1 hour, we tried out the same again). However, I fear the traces of sperms might have entered the vagina. As a preventative measure, my girlfriend took an ipill immediately. However her periods are delayed by 1 day. Should we be worried of possible pregnancy?