1st Response Conception Lube

Hi all, I have a query in regards to the conception friendly lube. After nearly a year of trying for a baby, my husband and I have come to an agreement that I will not tell him when I am ovulating. He wants a baby just as much as I do but doesn't want to lose our enjoyment and passion in coming together and having sex, which I understand, nor do I. I would like to try the conception lube as I have sometimes no CM and have once before had an ectopic pregnancy resulting in a ruptured tube. How long before having sex do I need to insert this without making it known? (assuming this is inserted with applicators) ive never used it nor purchased it before. Thank you xx