Implantation bleeding?

Hey just looking for some insight on possible implantation bleeding. I think I may be/ have experienced it but am honestly too nervous to take a test out of fear of disappointment. I got what I thought was my period but it was not like normal for me. Usually my period is only about three days and it’s pretty medium to light flow. This time I had some moderate cramping and light spotting the first day then heavy bleeding the next (which is not normal for me at all) and just for that day. Since then I have been spotting (also not normal for me) and having very light cramps. If maybe anyone else had an experience like this or have any knowledge about would be helpful.