Symptoms of pregnancy before missed period

Hello ladies

This is For any mamas out there willing to describe if they had any symptoms of pregnancy before they missed their period or just knew that they should go ahead and test.

I’ve heard and read several articles saying that pms symptoms and pregnancy symptoms are very similar; such as breast soreness and mild cramping.

I’m asking because I’ve had really achy boobs for days; longer and worse than if I were going to be starting; my lower back and abdomen has been aching slightly and my reflux has been acting up and I feel nauseous randomly during the day. Not to mention I’ve been having really weird dreams.