Advice / tips

Hi my name is Megan I'm 25 , my husband and me have been trying to conceive for about 9 months, he has 4 kids but we want one together . I am 224lbs but according to my doctors I should be at least 140lbs I'm 5'4 but i think I will be healthy and happy at 160lbs I was at 250lbs. I'm also a amputee I just got my prosthetic back in November . I was in a wheelchair for 2 years my husband and I were in a very bad accident and I ended up losing my right foot , I am not sure where I was in a wheelchair for so long that it might have messed up when I ovulate but now that I am up walking more I am losing weight quicker and noticing my cycle has been the same for a few months now could me being on the bigger side and being a amputee have something to do with why we are having a hard

time concieving