Depressed

Every time my ovulation week comes around I get so depressed. I've been with my SO for a little over two years and he knows how much I wanna have a baby. He told me the beginning this year we could try in about 6 months, and now when it's almost 8 months later, were still using condoms. Every month I get my hopes up thinking we're gonna try, and nothing. It's to the point where I'm really depressed. I feel it's never gonna happen. 😢 Is this okay that I feel this emotional?