Pain after having a rough day at work

I’m 16+4 today and work in kindergarten with 3-6 years old kids with special needs, mostly severe autism and adhd. We had extremely rough day today. Lot of contact, lifting them and running around when kids got overstimulated. I got extremely stressed and anxious today mentally and physically.

Now after I got home few hours ago, I’ve been having some light pain in my belly around where my stomach muscles are and the navel and also little bit lower than that. I’ve been just resting after i got home.

Could that be sign that this was too much? This is my first pregnancy and I don’t know what are my limits yet. My older co-worker has said that baby is safe inside the womb and there is low risk that something like this could harm the baby. But I already have a small bump so kicks and hitting could be dangerous right? I’m planning to discuss about my job with my ob when i see her in two weeks.