When best to test?

Katie • 23 from UK. Single mum to Mya. Born 4th Feb 2017 👶🏼💗
It's my first time TTC and I'm not sure when I should do a test, can anyone help?  I've been off the contraceptive pill for 1 month, the 1st may was my first day not taking my pill. I'm due for my period On the 31st of this month (5 days time from today). Will my body be back to regular periods after coming off the pill? 

Vote below to see results!