Obese and need help

I’m currently obese. I was always bigger growing up but lost a lot of weight during and after college. For years I gained and lost but still stayed in a healthy weight range. When I got pregnant with my daughter I gained 55 pounds. That was 3.5 years ago. I initially lost some weight but the scale continued to go up over the years. I am now embarrassingly finding myself weighing more than I did when I was 9 months pregnant. I desperately want to lose weight and desperately want to get pregnant again. We’ve been trying for two years with no luck. Our test results are normal so we are diagnosed with unexplained infertility. My husband talks a lot about how he thinks our health/weight is why we aren’t getting pregnant. To me this translates to its my fault since his sperm is great and that is the only part he contributes to the baby making process. I’ve been working out consistently for 2.5 months and have seen zero results. I’ve only been able to do the elliptical for 40 minutes 5 days a week since my daughter is very needy. I’m now trying to clean up my eating but my husband hates all healthy food. I’m not a good cook so I don’t know how to make stuff taste flavorful but still be healthy. Honestly, I can handle bland food and be satisfied but I’m sick of his complaints or throwing his portion away and eating my daughter’s snacks instead. I just don’t know what to do. I just feel alone and stuck. I can’t lose weight and I can’t get pregnant. I want either or both (even though that isn’t very likely with pregnancy) of those things more than anything. I’m sorry for my long post and I don’t really know what help I need. I guess I’m just hoping someone can relate or give tips to make healthy food taste better.