Question

 DH works a ton this time of year and we have only had a handful of times to fool around and only once during my peak days. I've been monitoring my cm and bbt and I have no clue if I've ovulated. AF was due between 4-19 and 4-21 but still hasn't shown up. I tested 4-19 bfn but it wasn't first thing in the am. Been nauseous but no other symptoms. I breast feed but always have regular cycles. I'm trying to decide to test again or wait it out.