As I noted here on TTOL a while back, my wife and I both had covid-19 starting with positive tests 10/16/20, thankfully we had "light viral loads" and were fine in 7-10 days. We were warned by our county health department and primary doctors that; we could test positive for 8-12 weeks which would affect our annual trip to SXM 01/17/21. Our local market was offering free tests and we tested on 11/7/20 and both tested negative on the rt PCR. So 3 weeks post covid we were negative. As for the antibodies protection, I have been following studies from around the world and many people are showing antibodies still rising 6 months later. Our primary said there is no definitive study yet on how long we will be protected.
Hopefully you will test negative in a short period of time and on the way to SXM.