Hello,
Welcome to ehealthforum and thanks for writing
AFter coming off any form of contraceptive method it can take few months to a year for a woman to conceive.It cannot be commented exactly when you would conceive as the time period varies in every individual.As the periods are regularised and ovulation process starts the conception can take place anytime.
Regarding the risks heart problems and psychiatric issues have chances of genetic transmission.Also while you are on the medication(Sertraline)it is usually recommended to avoid being pregnant as chances of premature born baby,low birth weight are associated
It is an individual decision and after a detailed clinical examination and evaluation whether the medications are utmost important then only it can be commented regarding pregnancy.
Consider visiting a Gynaecologist for clinical evaluation so that after detailed evaluation she can guide you further.
Take care!