ovulation after miscarriage.

Hi everyone. I had an Erpc on 16th July, and for the past 3 days I've been having strong ovulation pains, have taken some opks and am having light to medium lines. I had sex 26/27 and 29/30. Oh and BTW my hcg levels are 0. Wanted to Ttc as soon as possible and just wanted to know if I should test in 2 weeks (hpt) or not, as there seems to be no sign of period but then saying I have no idea when af is due.