i am 163cm and 101kg. lost weight in the last few weeks, but no, your weight should not impact your ability to conceive, unless you have genetic risk factors.
My best friends cousin weighed 120+ kgs and is about 160-165cm tall and she fell pregnant. Although she did has a miscarriage at 8 weeks which was highly warned because of her health, it's definitely not impossible for you to get pregnant. If you feel like you're ready, it'll happen when it's supposed to 😌