So disappointed and feeling unattractive

After the birth of our first child I gained weight. Of course like do many women do. Prior to that I never had an issue with my husband, sexually. The past few times tho he can't seem to finish. I'm starting to feel like he doesn't find me attractive anymore. Today was my peak ovulation day.... Was hoping for baby #2 but I guess not. I could cry I'm so disappointed. Any advice out there???