Slightly freaking out. I'm 28 weeks pregnant. And like 2 or 3 weeks ago I woke up with some mild…

Slightly freaking out. I'm 28 weeks pregnant. And like 2 or 3 weeks ago I woke up with some mild bleeding. Called my OB's office and the nurse said to go to L&D triage. So we did. Turned out I had a kidney infection and BV. But the baby was fine. And the bleeding had stopped by the time we got there. Just now I wake up again bleeding. Not as much this time just like spotting. I've been really itchy down there and I'm wondering if it's from scratching. Now I'm worried and wondering if I should call my OB again or not.