No period but negative tests!

Aimee
Hi ladies, trying to get some advise. I ovulated on the 3rd & 4th. (Tracked ovulation and confirmed with blood test). It's the 31st I still don't have a period. Is it possible to ovulate and not get a period. I've done 6 tests all negative. 
I really want to get things moving so I can just get my HSG and move on to FSH. the wait is killing me. 
Is this PCOS up to its old tricks? 
A x