if she's married for about 3-5 years and still not pregnant, then she should be concern for that.

most women would not be concern even until 5 years especially when they're busy.

i guess as early as a year from trying, you need to be concern so that you can't prevent any future complications.

the couple should be concern not only the woman. both must see to it that they are fertile enough to produce an offspring.

when a couple eventually failed for a year of well-timed intercourse, they should need to seek an expert care.

probably a year or so of trying i guess.

for me it depends about their situation. some doesn't get pregnant right away especially if she's busy.

a woman should consider first a lot of things why she can't get pregnant - might be work related, being stress or having a serious medical condition.

if you are a bit of older, say 35+ up, then you should be concern and might need to get some treatment after six months of trying.

it could be frustrating though, especially when you really wanted to get pregnant but nothing ever happens.

if you are trying exclusively and nothing happens, then maybe you need to consult the doctor on how to have a successful conceiving.

some aren't aware if she has some disease that prevents her in conceiving like having ovarian disease or endometriosis.

a woman maybe concern with her situation, but what about considering her husbands sperm count or being unable to produce.

i agree to that, do not just concentrate solely about a woman's condition but also her husband.

somehow, there are instances you wanted to take note like if you had twice pregnancy losses, then you should be concern.

After 12 months or a year of trying to conceive.