Was it a partial molar? Usually they would recommend at least 6 months strict contraception after a complete molar before trying to conceive otherwise it could be molar tissue regrowing and not another pregnancy... But if you had the all clear then your chances are probably pretty decent, the odds start to go up after 2, but just having 1 doesn't increase your chances of another one by very much.
What is a molar pregnancy I've never heard of it before