So discouraged

Annie • 18, engaged to the love of my life <3 getting married on 10/15/15
My fiancé and I have been trying every single day for two months and still nothing. I completely missed my last period so we were hopeful but we got a BFN and my period showed up this month. Maybe a little graphic, but when I say we're trying every day I mean he is finishing inside me at least once daily. I'm taking prenatals and folic acid but we aren't getting anywhere. Sometimes I wonder if we'll ever get our rainbow 😞 today especially was very hard emotionally for the both of us. Any advice?