What do you think this is ?

moll • ▫18 years young.. in the UK....❤ freelance MUA.

So my periods are regular every 14 days.. 1 week on then 1 week off. I am now on day 19 and have been very off for almost 2 weeks my last period was lighter and lasted 4 days compared to my usual 7 ... I was not on bc because I thought I wasn't ovulating due to stress and being busy.

But in the last week I've had on off cramping.. Some days I think my periods about to start my boobs are fuller an I've had some nausea my cm has changed but I'm scared to test because I think it's two early n I keep thinking my periods gna turn up .. what do you ladies think I should do?