Period troubles but possibly pregnant still...

So normally my periods last about 3 days. I’m going on my 7th day. I’ve had 2 miscarriages and one successful rainbow baby in between. Trying again every month for another. Before this period I’ve had thought of maybe being pregnant but I don’t test until I’m late. This period was also a week and a half early. But I still have a strong feeling.

I’m still having discomfort and cramps. Honestly it’s been a few years since the miscarriages.

I also thought possibly be loosing a twin which also runs in my family but only one makes it full term in a line of 4 generations.

Has anyone ever experienced anything like this or lost a twin and still have been pregnant?