Covid positive upon departure

Came to Zihua on 12/18 and stayed a week, took Primera Plus bus from ZIH to DF and back to the house in Queretaro 12/24. 12/26 started the symptoms and on 12/30 the day before my return flight to here in Florida tested positive and then again on 1/4. AeroMexico did not give changes to ticket and had to pay an extra $300 to get the one way ticket back. Took me about 12 days to get somewhat better (had 2 moderna the wife 2 phizer) and we were the only ones out of the family who got sick. Finally tested negative on 1/9 and and then again day before the flight back to the USA. We followed all the protocols and still caught it.