Overweight and TTC

Hey I have been trying to lose weight for a while before I get pregnant...just to have a healthier pregnancy...but like always I have had no real luck. Most of my life I have struggled with being overweight and even after the lap-ban I am still overweight. I am wondering who is out there that is also overweight and was able to conceive? Did it take you a while...or did you have any problems?

Please let me know so I know what to expect...or prepare for.