Girls took a urine culture test at week 7, they said I have staphyloco…

Girls took a urine culture test at week 7, they said I have staphylococci, I'm very worried, they prescribed Amoxicillin, take it for 7 days twice a day. On day 5, thrush appeared, now for 2 days I haven't taken it. I had an appointment with a doctor today and didn't tell them about the baby. What should I do? Staphylococcus is very scary? Is it harmful to the baby too? And does the antibiotic also harm the child, I don't know what to do, and thrush hurts, itches.