I have PCOS, so I've never had normal periods. My husband and I thought we couldn't conceive since we went for 5 years without using any birth control. After I lost 50 lbs. in 1996, I became pregnant. My weight ballooned to 215 during my pregnancy. Over the years, I added 30 more pounds. Once my weight hit 245, I went from having a period every 2 or 3 months to every 6 to 9 months.

Now that I've lost almost 70 lbs., I have had a period every month for the last eight months. I would second what everyone else has said: See a doctor. I can't tell you what a relief it was to have a name for what was wrong with me.

I have PCOS and did not have periods at ALL for years unless I was on hormonal birth control. I also started at 300 lbs. They started coming back when I was about 60 lbs down, but were only spottings at first. By the time I got to 220 or so they were pretty regular, though my natural cycle is slightly long (30-32 days).

I am now 5 and a half weeks pregnant. I got pregnant on my second artificial insemination (IUI) cycle--which, considering we never tried to conceive naturally, is really pretty fertile. So far everything seems to be going fine.

Here is the story of my losing-weight-to-get-pregnant experience.

I was actually the opposite... I'd have AF for two weeks or so and then skip for a whole month. My doctor just put me on the pill and my periods became regular afterwards.

Awesome i would pm you but i dont know how

Wow thanks ladies youre all giving me a lot of hope. Its nice to have people to relate too. Im so used to being around people that havent gone through these things. Im glad i signed up.

Congrats on the pregnany, happy for you! Hopefully ill be in that same boat.

Wow your story is amazing hope your pregnancy is healthy

Not sure if it's been mentioned, but you might want to explore the possibility of being insulin resistant. A very common sign is lack of a period.