Saliva is bad for sperm, true or false?

Maya • 32, 2 MCs in 2018, both at 8 weeks. Polyp & Endo removed in June.

I keep seeing conflicting opinions about whether or not it's bad to lubricate with saliva (e.g. oral sex before BD). Have any of you heard anything definitive on the topic from a doctor? Or for the pregnant ladies, from personal experience?

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