TTC while trying to lose weight?

I had a recent health screening that showed high glucose levels and a high BMI. My husband and I are hoping for baby #2 sooner than later... I started losing weight (at a snails pace mind you!) and eating better as well as exercising... I have a fear baby #2 will take longer to conceive (my first was conceived in month 2)... So im a lil nervous to put baby plans on hold... Any advice?