Pregnant very soon after mc..

I miscarried twins on August 2. Ugh it was gut wrenching, emotionally, I felt like my body betrayed me and I was so angry with myself. I was only 6 weeks along so my dr told me to carry on trying if we wanted to. I was blessed to get pregnant again right away. I got my first bfp on sept 2. I am thrilled and I'm about 14 weeks but I am so filled w fear. Every time I use the bathroom I am afraid to look Bc I'll see blood. Any little cramp makes me think it's happening again. I have had terrible morning sickness - so on top of the anxiety I am feeling bc I am afraid I'll mc I have nausea and vomiting 24/7. I have 2 healthy babies and never had any problems w either preg, so the mc was so shocking.. I guess I'm wondering if other ppl have these feelings??