My fisrt 2 were from my first hubby and were 7 10 & 7 9 my 3 is from my new hubby and she was a week late and 7 1 all girls.
There really is no way to tell but if you have big babies its very probable. Mine went like this 1st -7lbs 6oz, 2nd - 8lbs 11oz, 3rd- 7lbs 12 oz and 4th 8lbs 9oz. So I am assuming this one will be big too.