Diphenhydramine and stopping BFP? πŸ™„

Sarah-Jane β€’ TTC 16 monthsπŸ’We did it🀰🏽Sophie born 10/7/18πŸ’•
I have been taking Sleepeeze (UK) for about 7 years now (1 tablet a night) and TTC for 5 months but have just come across something online about this drug affecting being able to conceive? It dries up fertile CM and can affect ovulation? Has anyone taken this drug before and stopped or know anymore about it?
Safe to say they are in the bin already ☹️