Irregular periods

Tarin
So this year has been a super crazy year for me, in terms of periods... But also I think stress had a lot to do with it. 
January- regular period Feb- no period
March- regular period then I didn't have one until just this past week! 
Now that I think I have the stress under control, we are going to try and start watching my ovulation schedule and I'm a super newbie to TTC and Glow. 
Any tips or tricks? 
.. I already have one daughter she is 4 (will be 5.. This year) but never had a planned pregnancy! 
Thanks! 😊