Plan B stories?

Daphne • Mother of 5!!🧑🏻👦🏽👧🏻👧🏻👶🏻. Our fur baby Coco🐶. Photographer 📸, seamstress 🧥, multitasker 🔥🍰🏐🚒🏊🏼‍♀️ scubadiving, first responder, and also a interpreter at our local clinic. I love to keep myself busy! I love being a mother!

So I had my baby August 21 2018. It was my 6th pregnancy but 4th successful. (Miscarried twice but we also think we miscarried a twin too so not sure if it’s 3). I hadn’t also started my period yet which is why it’s more confusing because idk if I’ve ovulated. Anyways. My bf has 3 kids from previous relationships. And we have 4 together and we’ve decided it’s time to stop having kids and grow. Well he’s due for a vasectomy( he’s on the list ). We’ve been very very careful (we tend to get pregnant easily). But one night(3 weeks ago) he couldn’t take a condom in time lol. And the next morning I went to my local clinic and took plan B. A week later I had light pink spotting for 3 days and nothing else after that so I have not had a true period since I had my baby 3 1/2 months ago. What are my chances I am pregnant? I’m scared to take a test 🙈 I will ofcourse but just waiting a little longer. But wondering what you ladies think? I can handle a baby but it was a choice to stop at baby #4. Thanks in advance