Help?

Emily

So the last couple weeks I have been irritable and so emotional. Also my period isn’t due for another week. Hence I have been so emotional even before around my period. I have been having unprotected sex and I have a 5 month old daughter already. I felt my stomach and it’s hard.... weird right. Anyways I’ve taken a pregnancy test but I feel like it was a false negative. I feel pregnant just like I felt with my daughter. When should I test to get the best result. I also have been feeling so tired and fatigued and I am craving crap and peeing all the time.