Starting Birth control mid cycle 3 months PP

Anyone here get pregnant 3 month post partum when they planned to go on BC? Hubby & I decided to wait until our son is 1 to actively try again but if something happened sooner we wouldnt be upset. I just started the lo loestrin fe pill 10 days ago that my doctor prescribed and started taking it immediately as per her words... So that first day I took it Sunday ans then Monday (day 2) hubby and I were pretty intimate... Then day 4 and 5 I totally forgot about taking the pill cause I havent taken the pill for YEARS... So now I'm all caught up and 3 days ago I had some pretty intense ovulation cramps / fertile CM but I also ended up bleeding throughout the day very little dark red and bright red blood (filled up 1 pad all day). And we ended up having sex again (not intentionally) so now I'm in my TWW for My period to start.. And I have a gut feeling baby 2 is coming but we will see...