an hour later sperm would have died.
if you guys have not had sex i dont think shes pregnant. you could suggest for her to go to the doctor to see if this is normal, or get her a pregnancy test.
it sounds like she has irregular periods and maybe coming down with thr flu.
ask her if her periods have always been like this, but know that if you have not had sex and you waited an hour to do anything with her after wiping your hand off, pregnancy is very unlikely.