Possible pregnancy

Candy
Hi my name is Candy. I have a question for everyone. I started using glo at the end of last month. My ovulation started on the 10th, had sex on the 11th and again on the 15th. My period is now due in 12 days. Having some cramping that is faint but there. No spotting yet. Was wondering if I should test in a week or wait for period?