Antihistamine during TWW

Dawn • After 2 MMCs and 2 CPs in 2016, our 🌈👶🏼 is due 10.17.17.
Has anyone gotten pregnant after taking an antihistamine (like Claritin) during the TWW? My allergies are horrible. I'm itching like crazy. But I've seen some articles stating antihistamines can impede implantation. After 4 losses, I don't want to do anything I'll regret, but I'm seriously suffering. I'm 10dpo. Thank you for responding!