Weird pregnancy symptoms

Just got a BFP yesterday (3 days before period was due) after a previous missed miscarriage in February. And for the last week I have been having these random hot flashes and I have had a sore throat. The sore throat isn't painful like Strep throat or anything like that, it's just enough to be annoying. That along with flem in my throat, like having to keep clearing my throat. I don't have any other cold or flu like symptoms. I Googled ( not a great idea, I know) if hot flashes and a sore throat we're early pregnancy symptoms and to my surprise, it said they are.. just not as common as the typical symptoms. So I was just curious if any of you ladies have been experiencing any of those symptoms or have with past pregnancies?