Looking for buddies AF due 4/21ish

Hey everyone! I'm Beth. I'm 28. I have one son and I'm TTC #2 . I use two different tracking apps. glow says AF is due on 4/21 the other app says it's due 4/23. I recently started tracking bbt but I'm still a little confused about it. My hubby and I just started TTC. Also I'm a smoker and I'm trying to quit before getting pregnant. Anybody on this same journey with me. I'd love to have a buddy for support and someone to talk with. :)