Biconuate uterus, week 6 , bleeding

Im in week 6, had heavy bleeding today, thankfully went for a check immediately and took injection to stop bleeding and was given 8 days hosptalisation leave to not move much. Saw Baby heartbeat for the first time. I have biconuate uterus and im 36 yrs old. (High risk pregnancy) Chances that pregnancy is highly unstable. Any one oth the same experience?