Is that lubricant that mimics cervical mucus. I know some women who swear by it. They have it at fertility pharmacies and at drugstore.com. They say to only use a half a tube though because a whole tube is waaaaay too slippery!
I think you can start BD'ing sooner than you would normally do an IUI.....since the swimmers live longer..... Not sure about the mucinex...you could probably go ahead and start it. Best of luck!!
xoxo, Tracy