I've had antibiotics both times. With first bub I tested positive. I had the antibiotics (although I only had the first dose as DD1 came quickly). She was perfectly fine. With DD2 I was induced at 36 weeks. I hadn't had the swab yet, but we agreed that I'd have them anyway just in case. Once again, DD2 was perfectly fine.

I'll be honest, I haven't done any reading on the pros and cons of having them, it all comes down to the fact that I trust my ob, she's spent all that time studying and working in the industry for years, not me. She recommended it, so I did it. After all, I felt like I was paying for her expertise, so why not use it?