Hello, So I've Really Been Worrying. Me And My Boyfriend

Hello, so I've really been worrying. Me and my boyfriend indulged in foreplay but we did not have sex and he did not ejaculate at all. However I'm scared that by chance if his penis came in contact with my vagina while dry humping, could pre cum make me pregnant? I took an ipill within 12 hours. Today is the 6th day after taking the ipill and I'm experiencing some bloody discharge. What could this mean? Is there any chance of pregnancy?