Somebody pls comment 👶🏻

**Charlotte**
Hey ladies so looking advice as I near the end of AF this month.. 
First of all what should I be looking out for with regards to cervical fluid/mucus to show ovulation may be near?
Do you recommend bbt? I sleep with my mouth open would this make a difference in testing?
Also was thinking of using preseed or conceive plus but have noticed ladies making a connection between these lubes and miscarriages what do you think? Any other tips on how best to higher chances on ttc this month would be greatly appreciated. Thank you 😊