Hello, Welcome to HCM, I am Dr. Das
Your semen analysis
report indicates lower sperm count
( normal is > 15 millions / ml or 39 million total count as per WHO 2010).
Motility is lower than normal limit ( as per WHO 2010, normal motility a+b is > 50%).
With this number and motility, you cant be pregnant. But there is no risk.
Take the foods, that are rich in antioxidant or containing some vitamin C
Weight reduction is not required solely for this purpose.