Could I be pregnant

My husband and I decided this month we are officially ready to start trying for baby number two!! Our big baby just turned 3 this past month! My husband woke up one day and said he was ready and we really whereby suppose to start trying until october but any ways I am 4 days away from my period I haven’t really had any symptoms other then some cramping here and there mostly in the morning when I first get up I feel bloated and my nipples are a little darker but not much change but my boobs do feel heavier. I have noticed I have been going to the restroom a lot more and sometimes feel nauseous but I think it might be in my head! I’m to scared to test and get a negative. Is there a chance I could be pregnant with these dates ?