so im freaking out !! i need advice

my husband and i have been trying to concieve #2 for 9 months ..we had a chemical back in march ..well i take benadryl everynight bc of allergies also im a kid ey transplant and i take anti rejection medications..now my daughter was concieved while on antirejection meds ..but i have read things about benadryl drying up CM i am supposed to ovulate the 9th and have been taking opk tests since this morning and im getting close ..but my question is . is the benadryl causing us not to get pregnant ?? we just got pre-seed to try this month ...but im terrified i will NEVER get pregnant