Cramping and pink spotting

Hi friends. I’m 33 weeks and a FTM and I’ve been having really bad, consistent lower abdominal cramping and lower back pain since 8 o’clock tonight. I’ve been trying to just tough through it and drink water, walk around, lie down, etc, but it remained the same until recently when it heightened a little bit. I called my advice line for my doctor and I now have an appointment early in the morning tomorrow. I just recently went to the bathroom and realized I had pink spotting on the tissue. It’s not a whole lot but it’s making me concerned. I haven’t had sex so I know the spotting is not because of that. I just want to know if this is a cause for concern and if I should go in tonight rather than wait. Baby is still moving fine but the cramps and lower back pain accompanied with the pink spotting is causing me to feel conflicted. Any advice? Thanks

**The pain has been consistent and has not stopped at all no matter what I do. Whether I walk around, lie down, drink water, it stays consistent.