Late & still no BFP

Rocket Surgeon ☆🐠🌈 • "Retired" nurse, studying for masters in microbiology. One 13yr old, two stepchildren 9 & 11, husband & I trying for our first. It`s been a long road, but an amazing trip.
I know I need to take a chill pill & just calm the hell down. It's so hard to, though!!! I'm late, as of today, no af, still no positives, I've been testing the last three days. But, I don't feel my period coming & I've had none of my typical breakouts that I get right before I start. I don't feel pregnant & the only symptom I have is sore breasts & nipples. Maybe a slight heightened sense of smell or sensitivity to certain smells. This is so annoying & frustrating! I feel like I'm on a rollercoaster. To distract myself so far I've scrubbed the whole kitchen, vacuumed everything, bathed the dogs (they hate me now), washed all the sheets & towels, clothes are all folded & put away, sent a dozen emails, did some research prep for school next year, went grocery shopping & cooked dinner. Any ideas of what else I can do? Or possibly words of encouragement? I feel like I'm going to make myself crazy at this rate.