I've never had bed bugs but I know someone who has (she got her sons toddler bed/mattress from craigslist and it came with cooties). Call pest control and cancel, it's a waste of money, unless you want them to take care of the floors and treat the house. To get rid of them from your beds you'll have to get rid of your beds with the problem. It's such a hard thing to get rid of that it's cheaper and easier to just throw the things out because even if you do get a success with pest control, the bugs can come back, they are just that hard to get rid of. I'd say throw out the beds, wash your sheets REALLY good and any bedclothes that you and your family wear, and just get pest control to treat around the house and the furniture.
Also, another thought, do you have any pets? If so, they may not be bed bug bites, but flea bites (i've gotten fleas in my bed before from my dogs and would get bit, not fun). Even if you don't have fleas but maybe a neighbor has a dirty dog or cat they can get into your yard too and on you and your kids, in your house too. In that case treat your yard for fleas even if you don't have animals. If they are bed bugs you will be able to see tiny black things moving along your bed, look close, they can be heard to miss sometimes. When you take the sheets off especially you can see them on the edges of the mattress where the creases are. Good luck in getting rid of them!