Clomid didn't work

Trying
1st round of clomid sad to say im not pregnant! !! Period actually came on a day early..... I'm so depressed! All the things that should be easy is so hard for me.... I'm giving up hope. ... this was my last resort. I have one child and she 10... I feel less then a women not being able to give her a sibling. I hear her pray for a sister....and sadly that's something I want be able to give her..... pray for my strength