[ElaineM]

I think some excellent suggestions were shared here.
I have one more. First dates don't need explanations, because first dates should be casual meetings anyway.
Wear a pink breast cancer bracelet on the second date and see if that inspires the date to ask questions. Don't share too many details immediately if the date asks about the bracelet. Just say casually " I am a a breast cancer survivor" or something similiar.
If the date asks for another meeting more details can be shared on a need to know basis during each date.
Too many intimate details can be overwhelming for anyone in the beginning.