How much did you weigh when you conceived?

I'm working on baby number four but it is not going well and I'm thinking it's my weight.

#1 - 145 lbs

#2 - 150 lbs

#3 - 165 lbs

#4 - trying at 200 lbs

Has anyone weighed 200 lbs an conceived? I'm down from 230 but still working to get back to 160