For many of us, tea or even coffee is one of the best pleasures in life not just because of the taste and alertness they provide but because of the fresh and cherishable memories we make around it. One or two cups is ok as per experts and as rightly said extreme of anything is bad. Avoiding excess caffeine is always recommended, especially when trying to conceive. Have a read to know in detail: https://www.cloudninefertility.com/blog/caffeine-and-fertility