TTC and Antihistamines

K
So I've had hayfever for as long as I can remember. I've taken antihistamines every night for about 3 years - I'll be sneezing and itching uncontrollably if I don't take them. I researched this yesterday and it says that antihistamines can affect your chances of conceiving. Has anybody else heard of this and if so has anybody had a BPF afters stopping them? Thanks.