Hi Sam
I wouldn't worry too much about pyramiding, yours look fine and if you look at pics of my tort Cola, she has large bumps but this happened when she was a hatchling. Your's are both beautiful torts and obviously loved alot
Can I ask how old they are? and do you know how much they weigh? As they have to be a certain weigh/size to breed..
You would know if she was pregnant as she would be acting really strange..
Pacing around constantly
Maybe not eating
Climbing everything in her path
Sometimes they can be aggressive to other torts too
If she is showing none of these signs then she probably isn't pregnant yet, or the eggs haven't developed, as they act like this shortly before they lay as they are looking for suitable nesting sites...
If he is pestering her constantly, eg biting her legs, you may need to separate them as this can be very stressful for the females
Good luck
Jeanette x