Need some reassurance!

Hi ladies! I am currently 5-6 weeks pregnant. I’ve had some cramping that ends up feeling like gas most of the time, and it just seems a lot of my symptoms like to come and go, boobs hurt last night, and this morning they feel fine. I was just wondering if anyone else has had this. I had a miscarriage 3 years ago. And after losing 90 pounds, it finally happened. So I just need some reassurance from you ladies! Thank you!😘