The healthy kind of pregnancy weight gain is the kind that is consistent across the term. If you have a reason to believe that your gain is sudden and hyper, it might be indicative of preeclampsia (a pregnancy complication characterized by high blood pressure and signs of damage to another organ system, most often the liver and kidneys). it's the best to reach out to your health care provider and/or to look for professional weight gain recommendations. Setting a pregnancy weight gain goal could also keep you on track.