6wks & 4 days pregnant. Spotting.

Soo I’m definitely freaking out but not trying too. Long story short, I started to spot last night “light pink” then at like 2am I saw that it was “bright red” but very light still. Then recently , after I went to the bathroom .. it was pink again. I also was a little crampy last night and this morning. Idk if I’m miscarrying or if this is considered normal. I work at a animal clinic as a receptionist and was scheduled for am/pm kennel duty. And we have a lot of dogs boarding due to Memorial Day. With that being said , it was a lot of work. I did a lot of bending up and down , going in and outside , etc. I was extremely exhausted after that shift. The spotting started that night , I haven’t had any spotting since I’ve been pregnant and now I’m spotting “ coincidentally” after that kennel shift . So idk if I just over did it or if it’s something else. Any opinions? 😩😭