Worried! feeling discouraged

Bunny • ttc 4 years with 2miscarriages. Rainbow BABY GIRL born 3/10/18💕🌈 Gorgeous girl#2 born 02/19/19💕💕 baby #3 due 03/01/21
So ive been ttc for 3+ years, with one miscarriage a year ago. shamefully i havent ever taken vitamins or anything like that(stomach doesnt react well) but starting cd 1 i started taking my prenatals, selenium, vitamin d, royal jelly, & evening primrose oil up till fertile days. i was feeling really good about it at first but the day after O i got a yeast infection & we still BD. i still have the yeast infection at 5dpo. ive also been taking cinroflaxacin since beginning of month.. will the antibiotics & the yeast infection affect the chances of implanting? i plan on testing may 17 as it will be my birthday