I need advice!

My husband and I have been married for 5 years this month, I love him and I love having sex with him but I’m never in the mood. I used to be a waterfall just looking at him and now I have to try really hard to even get a little wet, which makes sex painful. Any tips? Is lady viagra a thing? Lol we have 2 wonderful children together but we have sex like 2-3 times a month which is TERRIBLE I know. He tells me it’s fine but I know how men are. I just don’t want him to go somewhere else!