Hey girls I need a opinion

I been having cramps over a week already every time they get worse at the beginning I thought I was because I was about to get my period but over a week and mo period my boobs are really sore and the cramps get worse every time I already when to the ER and I’m not pregnant but the pain does not go away I feel like I’m in labor this it’s getting out of my nerves I’m

Going crazy they did and ultrasound and everything looks normal I still think that I’m may be pregnant but is to early to show I’m out of ideas of what’s going on with me 😭😭😭😖 I had a miscarriage last year and I’m scare that if I am this could happen again any ideas of what’s going on with me 😬