without drugs is a very good sign, meaning that the ovaries are functioning. But you must test your chances of pregnancy by the following:
1- Day 2 hormonal profile: FSH, LH, TSH, Prolactin and E2.
2- Anti mullerian hormone
measurement at any time.
3- Basal antral follicle
count which is measured by a pelvic transvaginal scan day 2-5.
citrate challenge test.
the above tests give an idea about the function of your ovarian tissue, you may also test your fallopian tubes by a hysterosalpingiography and test your partener by a recent semen analysis
results of these tests will answer your question.
thank you and I wish you the best of luck.
Dr. Ahmed Bahaa.