Thanks for the query.
Usually in early weeks of pregnancy
placenta can locate near the cervix
but with progression of gestation it will move upwards which is called migration of placenta.
So possibly your placenta can also migrate.
Generally only after 20 weeks of gestation the term placenta previa
can be used.
So you better undergo repeat scan on 20 weeks.
Meanwhile you avoid journeys, constipation
, intercourse, lifting weights etc. And inform your family members about the condition and if bleeding occurs go to the hospital early.