Twins.

Chasity
Is it possible to have two ultrasounds already, one at 6 weeks and one at 7weeks1day and then this Monday it shoes two babies at 8weeks1day? I'm overweight as it is and nothing fits right now, even my doctor says I'm showing super early but I just want to know if its possible. We heard the heartbeat both times. 114 the first. 138 the second.