Vaginal secretion

Ok not sure how to ask this. But whenever I get ready to have sex and do foreplay I never get wet enough. Even when we use toys. I mean i am very attracted to him and i guess I have always had this problem to think about it. Its just we spend a lot of money on lube because I cant seem to get wet enough. Any suggestions on i guess what I should look into. I cant afford to see a doctor about this. Im sure i am not the only one with this issue?! 😔 help!