Bleeding from gums can have several causes, we should never ignore it as this can be a manifestation of a systemic disease.. I would suggest you to rush to your dentist as earliest possible, get the examination done.. the commonest cause is deposits around your teeth, in that case get a professional cleaning done, start using a gum paint after brushing and for 10-15 days use a soft sensitive brush and while brushing don't hurt your gums... but if there are minimal or no deposits then the bleeding gums should be taken more seriously as it's could be due to some medicines or vitamin C deficiency or there are many more reasons