Pork paranoia! 8 days after sell by date?

I am pregnant so all meat smells bad to me, but my grandmother gave me this pork fajita mix she got from the deli that had a sell by date of Feb 07th. Today is the 15th and I couldn't tell if it smelled bad. It did not change color except for slight oxidation on the outside next to the wrapper. I keep reading if not frozen by sell by date to eat within 7 days as it's loin cut and mostly missing all fat but then some places say to eat within 3 days. My fiancee a certified nutritionist said if it doesn't smell you can probably eat it but A. The veggies in it make it smell different and B. All meat smells bad to me. I cooked the crap out of but still got paranoid and called my man at work who said he can't tell if he didn't see it raw. Did I cook the pork for nothing? Will microwaving the crap out of it get rid of the possible toxins?