Like the others, I wouldn't worry too much.
FWIW I think that fundal height is an estimate at best, I know of a lot of babies who were born outside of their estimates.
And as for having a baby based on your stature... (just as an example) my DS1 was a big baby & is now 12 & very average sized. I know plenty of people who were small babies & are tall adults. I don't think there is much of a correlation - JMO.

I'm sure everything's ok the monitoring will help set your mind at ease & hopefully Alan or someone will come in here too