[B]I'm 21yrs old and have never had a regular period. Between the age of 16 to 18 I was on the pill which I was regular. But since I got off the pill I haven't been regular. I would have 3 or 4 periods a year, but now I have't had my period for nearly 9 months. I've taken a pregnancy test and they have all come back negative. I've notice that I'm tired a lot and have gained some weight, I'm also quite moody and can be emotional for no reason. I have no children and have been trying but I know no period, no ovulation then no baby. Please help me

Have you been to a gynecologist yet? What did they say if you were? Clearly appears to be hormonal in nature. And may all tie back to ovarian function.

No I haven't been to a gyno just went to a normal doctor.

Have you have a thyroid function test? I'm not sure of the physiology, but have a friend whose periods wouldn't stop and it was related to overactive thyroid, so I'm wondering if your sluggishness etc is a sign of underactive.

no i havent been to a gyno just went to a normal doctor.

You may want to consider doing just that. At least they will have the in depth detailed specialty knowledge a General practitioner my not have. And might be critical as you apparently want children and this is effecting your ability to conceive.

The best diagnosis you can receive will be from a specialist that can actually see you and run appropriate tests.