T.M.
First thing in the morning call your doctor and ask for them to write a prescription for a stat CBC. You should be able to pick it up right away and have the bloodwork done tomorrow. The lab should have the results by tomorrow night. Sometimes bruising like that could be that you're anemic, but other times it could be something more serious. I'm not trying to scare you, but this is something I would be proactive about and not wait until Thursday to figure out.
Best of luck with the rest of your pregnancy and delivery!