Lily Aldrin (played by Alyson Hannigan) on How I Met Your Mother on CBS was spotted wearing this peasant style maternity dress and purple handbag on How I Met Your Mother on episode &#039;&#039; (7x21) in Apr 2012. For shoppable links visit <a href='https://wornontv.net/3157/'>wornontv.net/3157</a>