I was doing low carb too. Lost nearly 50 pounds but then . . .well I kind of got depressed and stressed with family stuff and fell off my wagon fairly hard and am having a hard time finding motivation to get back on.
I've always been in that "obese" catagory and apparently don't have any problems getting pregnant, LOL I've had 5 kids in the past 6 years and we are planning on TTC #6 around August or September. I don't have problems when I am pregnant, so far and I hope it stays that way.
My last pregnancy I reached up and over 300 pounds :shock but with dieting and such I've gotten down to the weight I was when i had my first, about 240, so that's a plus. I'd really like to lose more before TTC again, but my

seems to have been blown away by the wind, lately and i can't gather it back up! LOL I'd love to be below 200 (even if it's 199) but I don't see it happening yet.
Good Luck to you and we are all here to support you!