Strep B Test

I was just curious when the Strep B Test was. My doc told me at my last appt. (4 weeks ago) but I forgot and want to be prepared if they do it tomorrow... so I was curious if anybody knew a general time frame. I assume not until closer to delivery, but just checking.

Also, if anybody here takes Lovenox when do they typically switch you to Heparin to prepare for labor?

According to my schedule it is at 36 weeks.  Glucose test at 28 weeks :(

 They usually test when you get close to delivery because if you test positive they need to treat it as it can be passed on to the baby if you deliver vaginally. 30% of women test positive. This pregnancy I am being super monitored and I have tested positive each time and they finally decided to treat it.