weight gain

this is something that bothers me constantly.....just earlier this year i was around 160 pounds (im 5'11 too) and i don't know ehat went wrong but i was drinking very heavily almost every day and eating all the time and now i weigh around 220 and i hate the way i look it makes me cry every day and im 15 weeks pregnant and i feel too big. today my fiance and i went out to eat with his family and we all took pictures and when i saw how fat i looked i seriously cried....it affects my day all the time.....i want to know if there is any way to lose weight in pregnancy or if it is safe? i take walks and try to eat the best i can but im also super picky. 😖ive never been this big in my life and it makes me depressed which only makes it worse.....i always break down randomly and worry my fiance doesnt find me attractive anymore even though he has proven to me in every way that he does but it makes me so depressed more than i have ever been and i dont know what to do