No gestational sac at week5 day 5, is is normal?

Went to gynae ytd and doc did a pelvic scan and did not see any gestational sac. I am currently at week 5 day 5. Gynae say could be too small or might ectopic pregnancy. Anyone similar circumstances but sees a gestational sac afterwards. I am kinda worried. I have chemical miscarriage last year and only manage to conceive this year after 9-10 month of trying.#1stimemom #pregnancy #advicepls