I'm sure most people trying to conceive know not to use most lubricants as can be toxic to sperm. I bought conceive plus (fertility lubricant) on amazon and I got pregnant on my second month, I sadly had a miscarriage but tried again the next month and fell pregnant straight away. Am now nearly 9 months, i used the conceive plus on all occasions when trying so I'd definitely recommend it! Also I'd go with the 75ml tube rather than individual applicators as will last much longer.
Good luck everyone x