How many Truths are there?

A couple of days ago , I discovered that my father who raised me was not in fact he- my biological father. Oh the wonders of DNA (D.o N.ot A.ctivate unless you are prepared for a few wee surprises). Anyway my wee surprises means that I i no longer have any 'full ' siblings but I do have 3 new half brothers and a half-sister- so every cloud right?