miscarriage and abortion

3 years back i had to face with an relationships Problem with my ex boy friend and at that time i was pregnant. I had to abort my child at that time as a result of those problems. Now i am married for 10 months and got pregnant 5 Months back. i was okay till to the 11th August and i was 25th week of my pregnancy then i got to know that my child's Heartbeat has stopped and he is no more live. This was unexpected and we cannot bear this pain. I had that fear whether that bad karma of previous abortion will be affect to this time.But according to the doctor everything was okay until baby's 25th week. We are suffering lot with this and have a fear that i will have to face the same situation in the future as well. I love kids so much. But once i had to done such a horrible thing due to the horrible situation with my ex. Please advice me how can i prevent from this bad karma and what should i do to survive from this.