Is it okay to lose weight while pregnant? Im trying to lose weight because i weigh like 300lbs but i think i might be pregnant because my husband, and i had a slip up around my ovulation time, and now my period is 4 days late. Is it okay to still try to lose body fat while pregnant? Im not planning to restrict my diet since i dont over eat or anything but i just paid for a 1 year membership to beachbody and dont want my money to go to waste.