Hello dear user. It is very nice that you  are aware of preconception counseling. Before planningg for pregnancy  you should  get  vaccination  history. For  eg hepatitis b, Hepatitis A, chicken pox if Rubella,  vtetanus,   typhoid, antimalarial prophylaxis  given in early age or not cossulted your gynae. Pulse, BP Hb should be checked. Vaginal swab for trichomonal infection .start good nutrition  and balanced diet proper medical, gynaecological history torch test abortion  history  , RH history  .if RH negative. So many other test should be done.

If you are trying to conceive and hv thyroid problem and anemia then first try to maintain a healthy TSH level and Hb . After that connect with me directly online for a detailed preconceptional counselling regarding what to eat ,how to try and what further tests you need to undergo

It is a very good idea to get your check up done before you plan a pregnancy.  This is called prenatal testing. This will include a General check up and a check up internally to see if your uterus and vagina is healthy.  Blood tests for blood group, anaemia, blood sugar is important. Check up for infections which can harm your baby such as HIV, syphilis, jaundice should be done. These are simple blood tests. Lastly it is important to check for Thalassemia which is a genetic disease in the baby which is checked through the mother's blood test. None of these tests require any procedure. Folic Acid supplement is required.  Other vitamins only if indicated.