Feeling depressed.

Ana • 22 years old. Mommy of my 2 year old princess and step mommy to 4 year old prince :) biological baby #2 due 7-2015!!
Had my mirena iud removed in May. Been ttc since it came out. Haven't had any luck. My fiancé and I want a baby so bad. This month, we did everything right. We didn't talk about it, we just did it. Just so we wouldn't get our hopes up bc I break his heart when I cry once a month. He feels as if it's his fault bc I'm 22 and he's 30. He thinks he's too old at this point, but we're still trying. Anyways, I'm now two days late, but all day today my tummy has been bubbling, which is what's usual for AF for me. And now I'm having a slight cramping going on. I just want to give up! This is so aggravating. All my friends around me are getting pregnant. I even had a dear friend of mine get pregnant and then abort it. It's just not fair. Needed to rant, this is the only place I feel like I can. Sorry for the long post!