Constipation in 1st trimester

Because of first trimester i m nt able to take much fluid which turns to be constipation. From last 3 days i really push hard to pass the stool and because of which I observed bleeding today in the stool. Now my anus is hurting and i have discomfort.. i already double the fluid intake like try to drink 2 ltr.. Can u please guide me is this normal??? This is the 9 week 3 days