The sadness accompanied with AF

I started my period yesterday. I cried for about 4 hours. What made it worse was scrolling through social media and seeing pregnancy announcements. I can’t be mad at them for expanding their family, but it’s so hard to be happy when that’s all you’ve been trying to do for 3 years. My husband tries to be there, but idk how to explain how it feels to me. I sit here in physical pain because the cramps are killing me and also emotional pain because I can’t seem to stop getting excited even though I get hurt every month. It’s so exhausting putting on a happy face and resuming life as normal. I feel selfish for being upset with those who are excited for be pregnant and I’m not, I feel like I’m miserable because I have to be happy around others, but those are just some of the feelings accompanied with infertility and unsuccessful attempts of TTC.