Hi I Just Missed My Period Last Month And Was

Hi I just missed my period last month and was having all the pregnancy symptoms and have confirmed I am pregnant on the 30th. I haven't gotten to see an obgyn because I'm waiting on my insurance. Throughout the month I missed my period I was having very bad cramps along with yesterday. Before I couldn't suck my stomach in because it hurt. Today I woke up and don't feel
Pregnant at all. No symptoms, I feel weak, shake sometimes and get chills. I can also suck my stomach in and it no longer hurts or is hard. My question is should I be worried? Thank you.