So confused!

Last week, I started the week with what I think is implantation cramps, tingling, stretchy pulling cramps for 2 days. When I got to Wednesday, that feeling subsided and I started spotting Wednesday-Saturday. My period was due to start Thursday or Friday. It was not a menstrual flow because I didn’t even fill a panty liner, or need to use a tampon. I have taken a couple of pregnancy tests and they’ve been negative. Now I don’t have anything going on besides being a little more tired than usual, moody and there’s a weird stretching feeling that feels like a little bit of pressure under my rib cage on left side. I remember back with my first pregnancy, I missed my period but I had no spotting or anything like what I have been experiencing and I didn’t get a positive test until I was 7 days late. Should I just wait to take a test later this week or could it have been just my period? Women have to go through so many confusing things!