Hi there Ms vigneriaj. I think it is indeed paranoia
Relax. I think you are fine & all good as one of my friends' says!
You said yourself, your birth control patch was kept on & eveytime you do, the preiod is delayed..fair call!
Firstly, these things are not always 100% foolproof & forgive me for being harsh here, but do advocate safe sex
not only because of pregnancy
but one would be more worried about the infections if i were u.
Having said that, relax it is early days yet. Dont do anything for a week & relax. Am sure the period will find you. If it does not come in a week, then do a B-HCG blood test
to rule out pregnancy & this will give you a titre as well for future undertakings whichever way you decide to go after that test.
In a nutshell, relax.,..all will be well & nature will take its course & hopefully be kind to you. Cheers & Good lUck!
Dr Praveen Rodrigues MD
Vikram Hospital, Bangalore, India