202 pounds 5 weeks pregnant!

I have just found out that I am 5 weeks pregnant I am really happy that I have fallen pregnant as I was scared that it would take me a while but it happened after only 3 months trying ! I am 202 pounds and really worried about putting on more weight during pregnancy and scared that my bump won't be visible :( can anyone around the same weight please give me some advise what it was like when they where pregnant and how long it took you to show and if you put much weight on during the pregnancy