Cramps & light spotting

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I’m about 5 weeks with my 3rd experiencing lower back cramps and light spotting ( light pink, sometimes brown), also what feels like period cramps. I have an appointment on Tuesday may 24, was wondering if I should wait until Tuesday or call and have a doc paged ( it’s Saturday). From what I have read these symptoms are normal, just looking for reassurance.

Has anyone had these symptoms and turned out ok?