Double positive OPK or pregnant? Help ;)

Elaine • 41. Vegan. Baby Rita was born January 2016 at 32w+5.
Hey ladies I'm cycle 5 TTC#1. I've been using ovulation tests for q couple monthes now to track. Today I'm 10 dpo it's been 2 days I'm slighlty cramping and having pelvic pain and backhache.
Seems like a second ovulation but I know it isnt. Though I took the last ovulation test of my box just for fun or no reason and the smiley is on (using the clearblue easy to reaf pink ones).
Anyone experienced that? Can it be the start of a BFP or just a normal way for opk tobreact end of the cycle? AF is due early next week...
Please share your experience.
Thanks
Baby dust all!!