What are the chances of pregnancy five days before period?

the chances of being pregnant 5 days before period is very slim- i mean it is 30%. but if it is 5 days after period the chance is very high. 5 days before period your 'fertile mucus are not present in the virgina but 5 days after period the fertile mucus are present or preparing to come depending on the woman's cycle. so the chance is limited.