Does using a lubricant inhibit conception? BabyCenter When trying to conceive, choosing the right lubricant matters. Some common products like oil based lubricants, petroleum jelly, saliva, and regular lubricants may harm sperm and reduce fertility chances. Instead, opt for fertility friendly, Let's talk about lubricants and fertility. If you're TTC, the type of lube you use can either support or sabotage your chances of conceiving. Here's what research shows: All impact sperm in Good Clean Love BioGenesis Fertility Lube 2oz : Target Totwoo Bracelets For Couples Long Distance Totwoo Sun Long Distance Touch Bracelet For Couples Vibration Fertility Lubricant, 2.5 fl oz (75 ml)