Antibiotics and pregnancy (tmi)

Iv had this issue with my ear the past few months now, it’s been getting all scabby and seepy at the back but never realised it could be my ear piercing causing it (Iv had them done for 16 years and no earrings have been worn since my 1 year old was born) so I just didn’t think it could be that but turns out it probably is as it definitely looks infected today 😩 how the heck did I miss that for so long! Anyway my question is, what should I do? I’m probably in need of antibiotics but I’m worried because a week ago I found out I’m pregnant 😟 I don’t want to cause anything bad to happen, super worried they’d give me the wrong antibiotics or something D:

Any ideas??

Thank you