Praying and hoping for my BFP

Zoe
I got a positive ovulation result Saturday; BD'd Saturday night- used concieve plus. I'm on pre natal vitamins and have been doing the best I can to look after myself. 
I'm doing my best to not overthink everything and stay positive but I'm scared of seeing a BFN in a weeks after AF is due. I've always had irregular periods but this is my first time TTC.
As are a lot of us; me and my partner are desperate to be parents.