In certain cases, maintaining healthy weight is a key to boost fertility. Being either overweight or underweight affects the quality of eggs and sperm, therefore it can reduce the chance of pregnancy. The interdependence between weight and fertility is connected to hormone levels that have to be balanced as they affect a woman's menstrual cycle, issues related to erection, libido (sex drive), eggs and so on. Remember that it's not about having a 'perfect' but healthy body. 

Body Mass Index (BMI) is one of the ways to determine whether you are into healthy weight range. You can go ahead and fill in your height and weight into this BMI Calculator (https://www.betterhealth.vic.gov.au/tools/body-mass-index-calculator-for-adult) to understand what your Body Mass Index is. Here is a guide how to assess your BMI result:

• BMI 18.5 - BMI 24.9: Healthy Weight
• BMI below 18.5 - Underweight 
• BMI  25 - 29.9: Overweight
• MBI over 30 - Obese

Please note that other factors such as your sex and waist line should be taken into consideration while calculating BMI. You look beautiful the way you are and it is totally up to you whether you would love to maintain healthy weight or not.