Whopping cough vaccine

So... FTM I will be 27 weeks at my next appointment. They have already informed me I will be doing my diabetes test w the sugary drink and getting my whopping cough vaccine to build up the immunity and pass it on to my little one. now I am not against vaccines at all... I’m actually very much for them. I just have crazy anxiety! And when I get shots I always freak myself out to the point of a panic attack just because I’m scared of ever having an allergic reaction.. I’ve never had a reaction to any vaccine.. I’m just so paranoid 😭 idk the point of even posting this... maybe I’m just looking for some words of encouragement and let me know you got your shot and you were fine!