Rh - rohgam baby#2 question? Help!

Dru

Hoping someone knows this answer cant get ahold of my doctor. Im 3 weeks 5 days pregnant with baby #2. Looking at some paperwork I remembered i had my shots for rohgam woth my first at 28 weeks and the after birth. Should I be concerned about get shot as soon as possible with baby #2? I remember vaguely the doctors explaining that its to protect the second baby I have someday but its been three years want to double check