Feeling frustrated

Meee

I can't decided wheather or not to call my ob. Pregnancy #6. 8w5d. Had an ultrasound at 7w4d and baby was awesome hr 155. But since 7w5d have had pretty consistent bad period feeling cramps and then spotting on and off pink and then last night when I went pee at 1 it was red but back to brown/pink at 7am. Should I call and ask? But what do I ask haha. Pretty ok pregnancies in past just don't remember this consisted painful cramps lasting over a week.