Please help me!

Maggie
Okay so here is the background. I normally have 29-30 day periods on time every time. I got off birth control 3 months ago. So this month I have been tracking with opk's I got a plus on the 21st extremely dark! We had sex the next day.  Sooo that worried me because that would be a short Luteal phase. Today is cycle day 34, so I am "technically" late for my usual period but say I did ovulate that late I would only be 10ish DPO so not really soon enough to tell if I am pregnant. So do I test and see or wait till what we be my "missed period" if we assume 14 day post ovulation for the cycle to start?? Does that make sense?!