If my PEP regimen is 30 days long, but I got potentially reexposed on the third day (before my first dose of the day) essentially leaving a time line of 

Exposure > 2 full days of PEP > 2nd exposure > 28 full days of PEP (30 days of PEP in total) would that affect the effectiveness of PEP for the first exposure? Or because the exposures were within 72 hours would the PEP remain equally effective? 

If it’s too confusing I can try to reexplain it 

If you were taking PEP at the time of a second exposure two or three days following your initial, possible unprotected exposure, the antiviral medication that you were taking as PEP would be active and prevent infection. There would be no need to change the duration for which you are taking PEP and no change in the effectiveness of your PEP for prevention of infection from the initial exposure.  EWH 

Would one missed dose make PEP ineffective? Would I be better off stopping PEP now or would completion of all other 59 doses still reduce my risk of infection significantly? 

What would the risk of infection be for vaginal penetration with one missed dose of pep? 

And that’ll be my last question. Sorry that they kept coming, but my anxiety and OCD keep messing with me and creating new scenarios that would make it so this exposure infected me. That’s why I’m know concerned that what I once thought was a gag was now a vomiting incident. I know that’s not your guy’s domain (anxiety) so that’s why I promise I wont buy further questions. Thank you for the help regardless.