Antibiotic while pregnant

Have any of you taken augmentin during pregnancy (first trimester especially) and everything be ok? Okay so I have bronchitis AND a sinus infection 😓 7w6d pregnant. I went to the clinic yesterday and they prescribed me amoxicillin & clavulanate (Augmentin). I told her about me being pregnant and she said this antibiotic is completely safe for pregnancy.

However I’m just a little nervous because I’m a FTM and wanna do everything right. When I went for my first ultrasound (everything went great, saw a great heartbeat etc) about a week ago my OB gave me a list of medications that would be safe but he also said “generally speaking, it is best not to take any sort of medication for the first 13 weeks of pregnancy.” I feel like crap though and just scared to trust anything. Any of you been in my shoes? Especially early on? Everything end up alright?