Partnerschaft – Unterhalt – kein gemeinsames Kind?

Of course, the combination does not make you dependable.

Only if a paternity test makes you a father or you marry before the child is in the world. Or you recognize the child as a physical child, even if you know you’re not the father.

A child is considered to be married when it was born after marriage. So the woman received the child before or within marriage. The prerequisite for this is that the husband lived during the term of conception of the wife or future wife.

Also a child is a child if the father has legally dissolved marriage by death, but the child is born within 300 days of the death of the father. One assumes that his wife’s husband has lived.

Thus, the “Kuckuckuckskinder”, that is, children born into a marriage, but not from the husband, are considered to be married children. This is particularly relevant for inheritance law. This presumption is only lifted if the husband contests the presumed marriage by the law.

https://www.melanie-loewe.com/glossar/marital-child/

But I guess that in the case of unclear paternity, a test will be made alone in their interest, or they call the father to make the paternity clear. After all, it is also about maintenance claims that arise or also social benefits that they would not otherwise get.