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 Premom Water Based Fertility Lubricant Pregnancy Prep Lube for Women Reasons you should be using a fertility lubricant when TTC , 1 Regular lubricants can be harmful to sperm, 2 Fertility lubricants mimic natural cervical mucus, 3 They can help provide comfort Amazon.com: Premom Fertility Lubricant, pH Balanced, Sperm Friendly, Water Based Personal Lube for Women, Men, & Couples Trying to Conceive, No Glycerin or Parabens, Fragrance Free, Condom Safe, 4 Fl Oz : JO Actively Trying Fertility Friendly Lubricant, Water Based Lube for Women & Couples Trying to Conceive, 4 Oz Walmart.com