Hi there, try to get together during your fertile period. Generally for evaluation of difficult conception, a waiting period of 1 year is suggested. Meanwhile you can definitely get S.
TSH tested as a part of preconceptional evaluation and also get Rubella IgG and IgM tested. In case you are not immune to this particular viral infection which can in pregnancy cause fetal structural abnormalities, you are given a Rubella vaccine and asked to wait for a month before you can start trying to conceive. Along with this if you have other menstrual issues, do take a gynaecology consultation for further evaluation. Start folic acid supplements daily as a prenatal
vitamin. Get some physical exercise. Good luck.