Is it safe if to ejaculate in her mouth?

i have a quick question me and my fiancee practice oral sex often but i don't know is it safe if i ejaculate in her mouth? if she swallows it is that safe?

The risk of HIV transmission through oral sex is very low, much lower than through intercourse, but other STDs can be transmitted orally - herpes, syphilis, chlamydia, and gonorrhea.But if there are open cuts or sores in or around the mouth, the chance of HIV transmission increases.