You wanted to know if metformin can help you get pregnant, because you've had irregular periods. And metformin is prescribed by doctors for 2 reasons. I have been on Metformin for 6 months now. Before taking metformin, my cycles could last up to 6 months without a period. So, I started meformin and my periods began getting normal. my advised would be to go to your doctors , as i have been having regular periods for about 4 months first time in 2 years , but my tests are showing my ovulation levels are really low which means i am not ovulating ,all this takes it a blood test on your 21 day cycle and this records your levels but please dont worry as it does'nt all stop there , my doctors is putting me on treatment to make. i am of normal/underweight.typically metformin does a wonderful job at regulating periods or at least helping! my dr didn't want to becuase of my wieght so instead i ate a REALLy low carb diet (which was really hard to do) and thats the month we got preg! i think that exercising on a regular basiss 20min of cardio 4 times a week also helps regulate periods and hormones and has been shown. Irregular Periods - Management & Treatment. Although some women with PCOS have regular periods, high levels of androgens ('male' hormones) and excess insulin can disrupt the monthly cycle of ovulation and menstruation. Metformin for the treatment of Polycystic ovary syndrome Polycystic ovary syndrome (PCOS) is a disorder of body metabolism that affects 5-10% of women and can cause infrequent periods, weight gain, acne, unwanted hair growth and infertility. My cycle became regular, lighter, and shorter after starting Metformin. The problem is that I also started Levothyroxine, a medication for hypothyroidism, at the same time. I don't know which medication to credit. I was having very heavy and irregular periods before being diagnosed. My period now comes every month and only lasts about 5 days, as opposed to before when it'd go anywhere from. CLICK HERE CLICK HERE CLICK HERE CLICK HERE CLICK HERE. This amazing site, which includes experienced business for 9 years, is one of the leading pharmacies on the Internet. My cycle became regular, lighter, and shorter after starting Metformin. I had period for 7 days after taking 500mg. I was having very heavy and irregular periods before being diagnosed. My doctor put me on Metformin to see if I will ovulate because I am trying to conceive. Prior to taking Metformin (started w/one 500mg pill once a day on 10/20/04 and am now taking one pill 2x a day since 11/3/04) I hadn't had my period in 2 months (last period 8/16/04).