Anyone else get depressed when AF appears?

A little background. We have 2 beautiful children ages 5 and 6. Our oldest was conceived the cycle following a miscarriage at 12 weeks. We have been trying to conceive since November. We found out in February that we were pregnant but I had another miscarriage at the end of March. We keep trying to remain positive, but everything month when I get my period I get depressed again. I also get very sad when I see pregnant women, and about 5 or 6 women I know have announced pregnancies in the last few months all due around when I would have been due. Only our parents, my best friend, and my sister know about the miscarriage, so I try to pretend that it doesn't bother me, but it does. To make matters worse the last 2 months AF has been over a week late giving me a false sense of hope that I am pregnant again.