I am dieting and ttc. I just posted a response on another similar topic, so I'll copy and paste it below..it's kinda long!
I didn't address the issue of being pregnant at a higher weight. I weighed in at 230 at my 8 week appointment, and gained under 30 lbs during my pregnancy. (I was scared to death that I would miscarry again, and so was my doctor, so I was pretty much put on house rest. I could move about the house, but she didn't want me doing much at all for the first part of my pregnancy.) It really wasn't very difficult at all. I gave birth late in the summer, and was not too uncomfortable, and it was in the 100's! It was much easier than I had anticipated. Thank God! I have skinny friends who complained and whined about how uncomfortable they were the entire time!
Below is my response to the other post:
I am so sorry for all you have been through. I too have PCOS, and know first hand how completely frustrating it can be.
At the time I started seeing my current ob/gyn, I weighed 235 and was 35 years old. I was then diagnosed with insulin resistant PCOS. I had multiple tests done to find out why I was unable to get pregnant. I ended up having surgery to remove cysts, and thereafter had three miscarriages. When they finally did the testing to find out why I was miscarrying, it was discovered that I had low progesterone and MTHFR (a clotting disorder). To treat the low progesterone, I just had to take progesterone supplements post ovulation until my next cycle started. To treat the strain of MTHFR I have, all I have to do it take one baby aspirin daily! Simple fix, but without these two drugs, I would miscarry.
My doctor put me on Clomid. I did 4 rounds of Clomid and HATED the side effects! I was a crazed lunatic...it made me feel so angry that I didn't even like myself while I was on it....I wanted to get away from myself just as much as my husband wanted to get away from me!
I decided to take a bit of a break and lost 15 lbs on a low carb diet. During that time, I did my research and found that a breast cancer treatment drug, called Femara, was being used experimentally as a fertility drug because many of the women on it for cancer treatment ended up getting pregnant. I made an appointment to discuss it with my doctor and she was familiar with it, and agreed to let me try it.
My first cycle on Femara was great! No side effects whatsoever! It was fabulous! Even better, I got pregnant my first cycle of Femara and my son is now 18 months old.
From the beginning, my doctor made it clear to me that I 'should' lose weight, but that I did not have to lose weight to have a baby. She said that just because someone is overweight, it does not mean that they should not be able to have a child, it is just sometimes more difficult to get pregnant.
I think that the combination of the Metformin I was on for PCOS, the progesterone supplements, the baby aspirin, and losing 15 lbs enabled me to get pregnant. You don't have to be your goal weight to get pregnant. As in my case, sometimes you just have to lose some weight and it helps!
I am telling you my story just so you know that there is hope. It took 8 years for me to have my son. Soon I will turn 40 and am currently trying to have another child. I started Femara this month...and hope to have positive results again.
Best of luck to you. This is such an emotional roller coaster to be on. It makes it so hard to sit back and watch everybody you know get pregnant...it's just maddening!
If I am unable to get pregnant soon, my husband and I have talked about adoption. I have adopted family members and love them just as much as if they were blood relatives. To me, they are no different. Adoption is always an option.
Best of luck to you on your journey.