i started all my preg at 84-86kilos
with dd1 my last weigh in at 35 weeks was 115kilo they estimated my wieght on the day i had her at 120+ as i had pre e and they wouldn't put me on the scales as they were scared nowing how much i had put on would raise my bp.

dd2 got to 115kilos at 39 weeks on day of induction (pre e again)
dd3 got to 100 kilos at 35 weeks not sure what was when gave birth at 41+2 but was 95 kilos when she was 2 weeks old.

To me as long as it is not over the top etc why worry.