Three women - Porn Star 1, The Pregnancy Scare Woman, Now Porn Star 2.
The pregnancy scare woman didn't revel her name, how they met, if she's a hooker, etc. I think that makes the story more believable. Or to put it another way, I think at least one of these women is telling he truth. Plus, there's more out there. Has to be, no matter if we ever learn of it or not.
http://www.dailymail.co.uk/news/article-3221992/Second-mistress-Josh-Duggar-claims-suffered-pregnancy-scare-unprotected-sex-disgraced-star-goes-missing-Christian-rehab-clinic.html