Definition of 安全日 (あんぜんび)

noun
safe day (when unprotected sex is less likely to lead to conception)
Related Kanji
relax, cheap, low, quiet, rested, contented, peaceful
whole, entire, all, complete, fulfill
day, sun, Japan, counter for days
Example sentences(showing 2 results)

However, it seems that just because it's a 'low risk day' doesn't mean that you won't get pregnant from intravaginal ejaculation

Just because it's a "safe day" I'm not going to make out like monkeys without protection. Isn't it the duty of loving sex to take proper care of contraception