Little confused 🤪

Ok , I have just got my bfp this morning and a friend is telling me i should also get positive opks too when you are pregnant .

Thing is my opks are all negative not even a faint line.

She has now got me worried. Is it true that you should also get a positive on opk when pregnant even in early pregnancy?

I never tested in past pregnancy’s with opks so this is new to me .