You mean that Mary went back in time and had other children?
You seem to have a penchant for getting things backwards.
After the birth of Jesus Mary "knew" Joseph and they had 4 sons and several daughters.
Matthew 13:
[55] Is not this the carpenter's son? Is not his mother called Mary? And are not his brothers James and Joseph and Simon and Judas?
[56] And are not all his sisters with us? Where then did this man get all this?"
That's the secret (to you) message in
Matthew 1:25 but knew her not until she had borne a son; and he called his name Jesus.
Sad, that. I've always operated under the idea of cause first and then effect. Have the antiCatholics here discovered yet another novelty? Well, I will march into my VP's office first thing Monday morning and declare that True Christians (TM) have discovered that cause does not precede effect and that all the things over the last 105 years that the company has done are now rendered invalid and we need to remake all of our processes. Do you have any convincing arguments for me? This is new to me.
Matthew 13: [55] Is not this the carpenter's son? Is not his mother called Mary? And are not his brothers James and Joseph and Simon and Judas? [56] And are not all his sisters with us? Where then did this man get all this?"
And you know the Catholic interpretation lo these two millennia. Right from the dudes that walked with Him.
Matthew 1:25 but knew her not until she had borne a son; and he called his name Jesus.
I am told that the Greek does not imply that normal marital relations did occur after His birth, rather, the emphasis is on Joseph not being responsible for the conception of Jesus.