My male tried it on with her the other night when I introduced them! Very intresting I must say.
I wouldn't write that too often, you are supposed to quarantine new animals for a while before letting them have contact with your other animals in case of paracites and disease. Just a tip for the future
The mating the other night wouldn't have produced anything this quick i don't think. They usually brumate on and off over winter, some people bump the temps up to reduce the likelyhood of the animal going into brumation.
This doesn't work sometimes as the animal has it's own body clock and you can't always stop it. Some people say it shortens their lifespan if you don't allow brumation to happen and they also say it reduces successful breeding.
The ones in the shop would have been 'forced' not to brumate (they may have been lucky and it worked for them) because who wants to see and buy a brumating lizard?
When in brumation it is like long periods of sleep and they wake up on and off to snack and drink some water. While in brumation they will hide and sleep.
Are you sure the lumps aren't her ribs? If the lumps feel egg shaped and roundish then it may be eggs. As far as i know it takes around 3 weeks from mating until eggs are laid (i may be wrong as i don't know very much).
I would let her settle in for a week and keep handling to a minimum as she may be stressing out and that may be why she hissed at you.
Here is some info from a caresheet about brumation and breeding etc (it is not my own info):
"Brumation-
Brumation (sleeping) is usually done during the winter months drop your temperatures down by about 10c mainly just feed your beardies some salad with the odd woodie and leave a small dish of water changed every day or 2 as generally your pygmy will do nothing but sleep and eat/drink whatever it needs to stay alive this is also an integral part of preparing bearded dragons for breeding.
Breeding-
Breeding with these little guys will usually start to occur shortly after brumation once brumation is finished and they start to become more active bump your temperatures back up to the ideal specs and start feeding your pair up.
The courting ritual will usually take 3-4weeks of constant head bobbing from the male and waving in a circular motion from the female sometimes you may see the male nipping the female on the back of the neck.
When mating finally occurs the male will mount the female and hold onto her by biting the back of her neck before curling his tail underneeth hers this will generally last for a short time but will and may happen regularly.
Egg laying-
Once pregnant it usually takes about 3weeks for the female to start filling up with eggs and looking for a place to lay you may notice her running franticly running around the enclosure scratching at the sand and walls."
If you would like to know where i found this then PM me here as it would be against rules to put a link to it here