How Can I Prevent Miscarriage After Spotting At 10 Weeks With A Fibroid?

Good morning doctor I have a little health problem I heard a miscarriage at 22weeks last yr and now am pregnant again and I sported on the 28th of march but stop d next day but getting to d scan d scan said the baby is fine but there is 3.2cm fibroid please what can I take so dat d miscarriage will not happen again thanks in advance.