pregnant or what??

I • First time mom❣️
Last time I had my period was on the 23-28th of December. 
I did have sex between Dec. 14th-Jam. 4th. 
Since this week I've been feeling extremely bloated, exhausted even when I get 8+ hrs of sleep, more than when I have my period. My boobs feels heavy, I've been peeing a lot, feeling a bit nauseous, eating more often&nauseous since yesterday. My gum has also been extra sensitive and hurting. 
My next period is due on January 20th, should I test in 2days or wait until after the 20th?? DOES ANYONE RELATE TO THESE SYMPTOMS? DO THEY SEEM TO BE PREGNANCY SYMPTOMS!??? 
Thank you!!