Trying to figure out if this is implantation symptoms or something wrong please help!!! TMI

So I definitely ovulated in the last week now had 2 MC and felt different with each pregnancy... was at work today and after lunch (ate the same I always do) went back into work and got the most

insane cramping (started off light so I though "yay implantation maybe") and ended up having to go to bathroom where had quite painful cramps and diarrhoea, this happened twice (only had 2 hours left of work) and wanted to now if anybody else has had similar experience?