Not Feeling Pregnant Anymore

So Last I've Seen My Doctor Was Monday & My Ultrasound Detected A Baby In The Sac But It's Slow & Steady I'll Say But My Hormone Levels Are Doing What They Should I'm Just Worried That Something Is Not b Quite Right & My Husband Thinks I'm Being Negative But I'm Not That's How I Feel I Mean Just Recently I Haven't Been Feeling Pregnant I Mean I Have A Lil Cramping & My Breast A Lil Tender But Other Than That I'm Feeling No Different. I Go Back On The 3rd To See My Doctor Because They Say Let's Just Wait It Out But I'm Freaking Out Am I Tripping Or Do Anybody Feel Where I'm Coming From?