Could I be pregnant with twins??

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​I’m 5 weeks 3 days doctor confirmed and I just tested to see my line progression. The pregnant line is darker than the test line. Has this ever happened to anyone before that was carrying twins? Twins run in both sides of are family’s, my dad was a twin and I was always expected to have twins but never did. This would be baby #3