Getting off Zep and terrified of weight gain

The title sort of says it all but I have decided as of last week to stop taking Zepbound as my husband and I are going to start trying for a baby. I am very excited for us to be starting this process but all week I have been terrified of the weight gain coming back. I have spent the last 1.5 years on the medicine losing 50lbs, getting my menstrual cycle back, and overall reversing my PCOS symptoms. I am afraid that if it takes us a while to get pregnant then the weight will come back and I will lose my period making it harder to conceive. I am still eating in a calorie deficit and working out 4-5x/week but with PCOS even being stressed can lead to weight gain due to the cortisol increase in the body. I guess i’m wondering for those who have gotten off the medication, how did you prevent weight gain? I feel kind of silly being so scared about this but I feel like I finally got my body to place where I am happy and confident in it and am constantly thinking of how it might go back to my old body. Any tips/tricks/insight would be really helpful!