To plan B or not to plan B.... That is the question!

My husband and I just had sex tonight. The thing is, I'm trying to avoid pregnancy since our daughter just turned one and I am finally engaging in my career. To clarify, I don't take birth control and we rarely use condoms. Well.... When things got really hot, I realized we were about to meet the big O together. So I just kept going instead of stopping for him to pull out. The kicker is that IM OVULATING and today is 33%. 🤦🏽 I've heard allot about how after having one baby, its much easier to concieve which is why I'm freaking out. Do I take a morning after pill or not? I work out allot and work in a high stress environment so what are the chances that the egg will stick? Someone help!!!!!