twins!!!

Had our first ultrasound at 15 weeks 2days and found out we're having twins! Was not expecting that at all. I think I was more shocked than my husband. Although he did tell the tech to prove it. We also have a home Doppler and last night we were listening to the heartbeat but because we moved the wand and found a different heartbeat (one was faster than the other) I jokingly said it could be twins. Did not think that would actually be right! Still getting over my shock but still very happy and excited!! The tech said they share a placenta and have their own sacs. Couldn't get the sexes yet but I've no issue with waiting until 20 weeks.