<P> Throughout the sixth season , Marshall and Lily try to get pregnant . Their first attempts are unsuccessful , however , and they worry that they will not be able to conceive . In the season finale , Lily finally gets pregnant . At the end of the seventh season , she gives birth to a son , Marvin . </P>
<P> Throughout the sixth season , Marshall and Lily try to get pregnant . Their first attempts are unsuccessful , however , and they worry that they will not be able to conceive . In the season finale , Lily finally gets pregnant . At the end of the seventh season , she gives birth to a son , Marvin . </P>
when do marshall and lily have a baby
when do marshall and lily have a baby
At the end of the seventh season
At the end of the seventh season