Feeling guilty about not getting pregnant

Nancy • 26, married. TTC baby #1
When me and my husband got married we wanted to wait a little while to have kids. Last summer (june) I stopped my pills and we started trying....September comes around and still no baby. My husband loves kids and was so excited to make them but nothing! November comes around, no baby but his YOUNGER sister announces she's pregnant "unplanned" ....and i wanted to cry. Since then my husband has been acting weird, and says that he doesn't want to be married anymore. ..says he lost the love. He won't admit it, but I know he feels like less of a man or like I'm less of a woman because I can't get pregnant. I asked him, but he says no that's not it...but once in a whole he will comment and say he should have had kids before marrying...so I think that's a dig at me. I have pcos, found out last October but it's been hard losing the weight. ..I dont consider myself obese but I'm definitely chubby but I can't seem to lose it fast enough. It's terrible idk what to do...😔. The TTC thing is no fun anymore.