Advice?

Heya , just looking for some insight or what anyone else thinks , my cycle length is usually around 25/26 days long hasn't went longer than this , I'm now on day 29 no period or any type of blood or bloody discharge which id usually get , app says period is late these are my symptoms the past maybe week or less;

*dragging-like dull cramps in lower abdomen (not all the time but throughout the day).

*Very sensitive nipples & side of breasts.

*nauseous at random times.

*exhausted could literally sleep all day.

*Hot flashes.

*Mild lower backache.

When would you start testing properly? I tested a day or 2 ago it was negative could it still be early? 🤞🏼🙁❤️