Am I safe??

At the beginning of this month, I noticed that I had brought bedbugs into my house. I'm pretty sure I got them from a friends place that I'm never going back to. When I noticed it, I bought a cheap steamer from Walmart filled it with boiling hot water and bedbug killer and steam the hell out of my room twice. Then I went in and washed the rug with boiling hot water twice maybe three times. I recently just got back from vacation a day ago. I haven't seen any crawling around since I got a blowup bed and as I was setting up the bed, I saw two of them they were white, but they were not moving so I think there dead. I am going to Walmart in a little bit to get a plastic sheep to put over the blowup bed so that I don't get bit up if there's still any alive. I'm pretty sure I'm taking everything into precaution. But I just wanna know am I safe or should I call an exterminator?