Second time mommy question?

Tabatha • I`m married to my high school sweetheart. We have two beautiful daughters.
A week after I had my daughter I was hospitalized in the icu for blood clots in my leg & lungs. They said when I got pregnant with my second i would have to take blood thinner shots. I am currently pregnant with second child, & my doctor appt is Thursday. I'm kinda wondering what to expect... Nobody I know has had to do any of this before..