Advice please

Olivia • TTC for 4 years PCOS suffer 💔 Married 27.10.18 💍
My boyfriend and I have been TTC for about 8 months but my period only came back a month a go having come off of the pill. I am now 2 days late for my period do I assume it's everything getting back to normal or have I got lucky very quickly? Do I take a test today or do I wait until I'm a week late?