My fiancé and I had been trying for 13 months & nothing

Princess
My fiancé and I had been trying for 13 months & nothing. I've used all types of <a href="https://play.google.com/store/apps/details?id=com.glow.android">ovulation apps</a> & still wouldn't get pregnant. I started using Glow in January plus also working out & changing my eating habits! This month my period is 2 days late! Took the test today & it's a positive! Going to the doctor tomorrow to be sure