TMI brown cm, 4 wks pregnant

Mo
I had this light brown cm today. On 7/31 I took 4 positive test that all were pretty light but positive. On 8/3 I took 2 more that were negative so I went to the dr and they did another urine test that came back light but positive, they also did blood work that I have to go back tomrrow and see if it's doubling. And then today I had this and I still have light consistant cramping today. IS THIS NORMAL? 😥