TTC after the pill

Angel • 23, Married, DD born 2/9/17, DS born 1/31/18, EDD 05/09/19

I am wanting to stop taking bc since hubby and I decided to try for baby #3. Sunday was the start of week 3 in my pack but I missed it and Monday now I am starting to spot.

How long does the spotting or bleeding tend to last after first stopping the pill? Also not sure if maybe I should take 2 pills and just finish the pack first.

Any advice would be greatly appreciated never used the pill before so not sure how it goes getting off of it. Used depo shot before first baby and nothing again until after second baby.