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, Lube and fertility: Can lube impact your chances of conceiving? KY Jelly and Conception: A Surprising Obstacle on the Path to Parenthood Can we use saliva or any over the counter lubricants when trying to become pregnant???, When youre TTC, regular lubricants can harm sperm movement, so choosing the right one matters.,