6 weeks with uterine septum!

Chella
I have had 3 miscarriages before. I've been diagnosed with a partial septum.  My husband and I are pregnant again and have made it to 7 weeks. Heard a strong heartbeat yesterday. Last three pregnancies there were no heartbeats. Just hoping this is the one.  Does anyone have a septate uterus? And did anyone experience brown spotting and cramping at 6-7 weeks?