At 34 weeks

I had the normal check up the only thing different was that I wanna say they said I had protein in my urine which is a first to hear although my doctor never mention or even brought it up which caused me to forget. Another thing is that I got retested for syphillis(this is after I had been treated for it) so now I am 35 going on 36 weeks and the nurses have called three times each time I missed the call due to cellphone being off. I'm just a nerves reck now bc now I'm wondering what could be wrong. Do you guys know why the nurses would've called me this time? *** healthy pregnancy despite having syphillis which is cured and an eye opener and my son is perfect***