To dream of using or seeing a contraceptive implies that you are reluctant to expose your thoughts or emotions. Perhaps you are embarrassed or afraid of how others will view your imaginative ideas and inspirations. It may also reflect fears such as pregnancy or a STD.
To dream of an unwrapped condom suggests that you are experiencing issues related to sex. Perhaps you are worried about becoming pregnant or contracting a disease as a result of a sexual encounter.
To dream that you or your partner is wearing a condom may imply that you are comfortable and secure with expressing and exposing your emotions to your partner.
To dream of receiving a vasectomy is a sign that you may be feeling a need to get back to your roots. There is an indication of 'tribe' here and a suggestion that connecting to the earth through 'drumming' or 'gardening', etc. may be helpful at this time.
To dream of fearing a vasectomy may be an indication that you are uncertain about an important decision and need to rethink it. Note the connections in your waking life. For example, if you or your partner is about to undergo a vasectomy and there are dreams of fear surrounding it, then this may be cause to discuss the matter before proceeding.