Bleeding at 6w 3d

Nicole
Hi all,
Just went to the loo before finishing work and wen I wiped there was blood. I'm 6 weeks and 3 days, is this the start of a mc?! Had slight cramping earlier this afternoon like period cramping. This next bit is a bit tmi but had to go for a poo and hv been slightly constipated so wen I went it hurt, and wen I wiped my behind there was a bit of blood. Could the blood be from that and not mc as wen wiping now at the front there's no blood. I pray it's not a miscarriage, I've wanted this baby for so long