I am a female aged 39 and would like to start a family in the near future. what checks do i need to do?

Gynecologist : Evaluation, together as a couple, to check your fertility status. Male factors do contribute and would need to be fixed same as female factors, e.g ovulation staus, etc.. good luck

An obstetrical team: Seek an obstetrical team consisting of nutritionists, geneticist, obstetrical nurses, obs sonographers and obs clinicians which can offer you and your partner "preconceptional evaluations/care" and personalized consultation, guidance and advice ...and later on provide you the prenatal, intrapartum and postpartum services you need..