I'd just gave birth Sis, and like you I frequently experience spotting and bleeding. I am also at my 40's and have bicornuate uterus.. Alhamdulillah by prayers and believing that my child is a gift always strengthen me and keep me on fighting for his safety. My bicornuate uterus as septum as well, luckily my doctor advised me to talk to my baby inside my tummy and asked him to keep stronger. Alhamdullilah at 36 weeks through C-Section I had successfully delivered a very healthy and happy baby boy. I do believe that miracles exists in the name of Allah.