I'm worried that because I'm overweight I won't be able to carry my baby? :(

So I'm overweight. I'm classes as obese with a bmi of 36. I'm quite short and have a huge belly!!! It hangs really low. I look at my tummy and I wonder how an earth will I carry my baby? I'm 6 weeks and petrified I'm going to miscarry. I'm posting this a anonymously because I'm sure I'll get some hate and worry I'm being really stupid!!!!!
I had a miscarriage so everything panics me. 

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