Opk help!

Gina

Hi Guys! So I had MC at 10 weeks on December 5th(blighted ovum). AF arrived on January 14. Started Sperm Meets egg plan so BD on CD8 and 10 with peak Opk and EWCM on CD10. Now cd11 negative Opk but still a pretty dark line just not as dark. Just wondering if I should keep testing with opks in case it was a random surge. Or should I keep BDing for next two days. Thanks