When’s best to test?

Caroline

So my cycles have been all over the place since coming off bc I’m December, last month I had a 49 day cycle, and the month before was 35 day cycle... because of this I used a digital ovulation test this month to pinpoint ovulation, and I got a flashing smiley on day 30 and solid smiley day 31... so I’m on 6dpo... currently getting sharp cramps on the left hand side which was the same side I ovulated on (I always feel pain on the side I ovulate from around ovulation)

I know it’s too early to test yet, but I don’t know when af is technically due... when should I test? 14 dpo... assuming that AFdoesn’t show 😫