Threatened Miscarriage

S✨ • Married - Pregnant with my First Baby
Went to the ER to see what was wrong with my little one after I had some serious cramping and spotting. The ER Doctor let me know I went through a threatened miscarriage, but more than likely will carry to term. He also firmly suggested I see my OB/GYN within the next couple of days. 
I have an appointment tomorrow with my OB/GYN to see my baby girl. 
I'm only 13 weeks, but I have so much love for her already and I can't imagine losing her. Just the thought of a miscarriage brings me to tears. 
Anyone else experience anything similar ? What was the outcome ?