The quality of your fertility determines your position in family, especially in a traditional family that pays more attention to inheritance of family, so ability to have children can show status of family, but not all women are more fertile, some women have poor fertility, making it difficult to conceive. If you want to know if your fertility is good or not, your "big aunt" can help you with that.
Good fertility or not can be recognized by auntFirst, age of my aunt

As we all know, women have been tortured by "big aunts" since puberty, usually between ages of 12 and 14. At this time, big aunts are not very stable, sometimes less and sometimes more, but this is normal, because their organs are not yet mature at this time, so they will be unstable. But if menarche comes later, it will affect development of ovarian function, thereby affecting conception.
Second, type and degree of dysmenorrhea

I find that when you mention dysmenorrhea, you feel more sick. I think everyone is hoping they don't get dysmenorrhea, but most girls will have it to some degree. There are two main types of dysmenorrhea: primary dysmenorrhea, which does not affect genitals and therefore does not affect reproductive function, and secondary dysmenorrhea, which affects genitals abnormally and thus affects fertility.
Finally, is your aunt's cycle stable?

It's normal for girls to have irregular periods during their first period. At this time, girls' genitals are not yet fully developed, so you have nothing to worry about. But if you have reached childbearing age, and your menstrual cycle is still very unstable, then you need to pay attention to this, it may be due to illness and you need to go to the hospital in time for treatment.
The above three methods can help you determine if your fertility is good or bad. If you want to know if your fertility is good or bad, you can check it yourself. Fertility is not innate, so everyone needs to maintain good living habits and actively seek treatment in order to conceive a child earlier.