bed bugs infestation

My boyfriend lives in an apartment building. Over the past few months I notices bumps all over my body and becoming very itchy over night. We did find that the apartment has bed bugs and I may have possibly been taking them home with me unknowingly to my house. I saw a total of 6-7 bedbugs in my house. Does that mean my house id infested?? Also we bought tons of bed bug spray and bombs. I have not got bitten in the last two-three days so does that mean it worked??

My nephew slept over a friends house and came home with a rash all over him.

My sister took him to the doctors who told her that it was caused by bed bugs.

My nephew came to my house immediately after leaving the infested home, but only stayed for a few minutes…he did lay on my bedroom floor in an attempt to reach the car hiding under the bed…my question is how likely is it that he may have brought bed bugs into my home?

Do they usually travel on the clothes a person is wearing? Is it likely that my home will become infested?

I think I have a bed bugs infestation. I keep getting bites that produce a large welp with infection in it. I thought it was fleas but now I think it is bed bugs.

What are the differences btw the two and what do I need to do to get rid of them.

I have not had any bites on my feet and ankles, only the top of my leg and under my arms.

I have a cat, but he does not have any fleas on him. I do not know what else to do.

My boyfriend is getting bit as well, none of his are on his ankles or feet either. Is this bed bugs. Please help