5 weeks?

Hi everyone! So according to my LMP I’m 5 weeks, I’ve been nauseous & having symptoms for about a week, I can really feel my uterus stretching & I found our babies heart beat with a Doppler, it sounds normal & then sometimes it sounds more like a gallop. This is baby number 3 for us. Do you think I’m just more in tune to my body? Or could I be farther along? I don’t have a phone appointment for 3 days & then they make an appointment & finally an ultrasound 🙄