Antibiotics, Late Period, Negative Test

Catherine

Question: has anyone ever had antibiotics delay their period? Mine was supposed to start over two weeks ago, but it hasn't. I'm not on hormonal BC, but I've used protection every time.

I've been taking pregnancy tests every few days but all of them have been negative. If I were pregnant, I would have tested positive by now right? I'm just so confused and worried.

Any insight would be greatly appreciated 😞