Pregnancy weight!

Hi everyone! I am a mom if 2 and just found out as of today I am pregnant with #3!! I’m 5’2 and weight 189 pounds. I started my weight loss journey in October..my goal was to reach 175 by the end of December. I am extremely happy about the pregnancy but can’t help but think I will never reach my goal..this has been a challenging time for me. Is it possible to still reach my goal ? Would it be harmful to the baby? I would love to have a healthy pregnancy. Any tips?