Trying to conceive baby #1!

Brianna • 20 years old & have a rainbow son after my first miscarriage 🌈
Me and my boyfriend of 4 years have been trying for baby #1 for 4 months with no luck. My best friend recently had her baby without even knowing she was pregnant, she got her period each month & had multiple negative tests even blood.
They did an exray when she was 6 months w out knowing & still didn't see a baby, until she gave birth this septmemer . I know it will likely not happen to me as my mom never had any bleeding in her pregnancies, so mine would probably be the same right? I've been off nuvaring since August & haven't used any protection . I use opk's and chart my temps . Sometimes I feel like I'm not ovulating, my period has been weird these past three months, really light in color and in flow . I usually always have a 29 day but it recently changed from 29 to 36 right back down to 26 . I'm confused, any ideas ? Also looking got a cycle buddy! Feel free to comment! Baby dust! 👶🏻💕