Cramping - what’s normal?

So my husband and I are pregnant around week 5 or 6 first baby for either of us🤯 we had a miscarriage last year and now I’m just terrified for these first weeks until we get to a more stable point in the pregnancy. I’m just needing some comfort on cramping type sensations. Are they normal around week 5 or 6? I’ve always had extremely light periods with almost zero symptoms so I don’t have a lot to compare these symptoms to. They are NOT debilitating by any means very light and sometimes I feel they could be constipation but other times it’s distinctively period-like cramps. I’m having panic attacks whenever I feel them, running to the bathroom and checking for blood. I also have a negative blood type while my husband is positive so that’s another worry. Any words of advice?