Light cramping but....? (Tmi)

Britney
Having light cramping at nights and into early morning and this afternoon saw a bit (tmi) of straw colored cm. No blood, nothing really pink, but just straw. This is rainbow baby and were so thrilled but I'm also terrified. I tested yesterday afternoon again and was 2-3 weeks so doesn't show anything going down. My ObGyn's office has yet to call me back for my request to do blood work but made 8 week appointment for 4/28. Anyone else having this or just worried in general?