I am Overweight

Hi mummies, Just to check if any of you conceived successfully eventhough you’re overweight (i couldn’t find a better term for this, i hope you don’t mind) as i am trying to conceive and feeling a bit down when i read up that weight plays a part in conceiving. I tried to watch my diet, eat healthily and stuff but doesn’t seems to work.. My family and i are considered as big size so it runs in the genes.