Could Heavy Vaginal Bleeding Along With Abdominal Cramping Be Due To Miscarriage?

I always have normal periods always in different day the first 3 days are always with heavy bleeding and cramping on my back and lower stomach. A few weeks ago i got my period on the first night I got horroble cramping that woke me up at 4 am I went to pee and took pain killers and was able to sleep. On the second night I didnt have the pain maybe because I took pain killers before bed and on the third night I again was woken up by the horrible cramping this time when I was in the bathroom after peeing I had a need to push and naturally I pooped but at the end I heared something hit the water, the lights were off and I didnt see what it was I thought it was blood that usually comes out. I again took pain killers and after that night I did not have any more pain. But I am wondering if its considered some sort of miscarriage or if it was just my body acting weird?