I don't get how Regina knew about Bay?

Angelo(Bay's biological father) took Daphne's saliva secretly and made a DNA test. Because he wasn't sure that Daphne was his "real" daughter. Then the results came and he showed them to Regina and left them. After that, Regina hired a inspector to find out who is her biological father.

I really don't understand it either. I'm sure it will be explained in the next episodes. However, I bet that Regina knew or she had some investigator find out. With Daphne's sickness, blood had to be taken, so Regina probably found out early on that Daphne wasn't her real daughter. And this is probably the evidence that will be used in court against the Kennish family. This is definitely the scoop that they have on Regina....also the child services information can also be used against her.

i cant either i cant believe she knew and never told daphne!

yea thats weird..that also puts her in a bad position.but i cant wait till they show that episode.

bay father though that regina cheated on him cause they are mexican dark hair dark eyes and Daphene was white with blue eyes red hair so he secretly tested her and he found out that she wasnt his and then later she tested her again and she wasnt hers too she then hired a privite investigator who found bay and took stalker picures of her

Regina hiered a private investigator after Angelo showed her the DNA test that said Daphne wasn't his.