High hcg! Twins?

C 💚

Hello ladies, I need some help. I have been none stop feeling under the weather and if I dont eat the second my stomach even attempts to grumble it kills. Well today I found out my hcg is 13,725 (36 days from lmp accordimg to babys size) and my baby is measuring exactly 5 weeks. A week and a half earlier I didnt even have a possitive pregnancy test. I am wondering if this could be twins as twins runs on the dads side of the family. Any help would be appreciated!