Genesis 30:7 Midrash

וַתַּ֣הַר ע֔וֹד וַתֵּ֕לֶד בִּלְהָ֖ה שִׁפְחַ֣ת רָחֵ֑ל בֵּ֥ן שֵׁנִ֖י לְיַעֲקֹֽב׃

And Bilhah Rachel’s handmaid conceived again, and bore Jacob a second son.

Read midrashic interpretation of Genesis 30:7: and classical rabbinic exegesis.