How to spice things up

Maria • Married 💍 Proud mommy 💜👶
My husband and I have been married for almost a year and we have a 5 month old daughter. And our sex live is not that great. He only the only one that works. I'm a stay at home mom. And he works long crazy hours. So he's always saying his tired so we really don't have sex much maybe once a month or even longer. What can I do to spice our sex live little bit???