To go to the hospital or not

Kaci • Law student. Expecting our first in May. 💙
I got hit in my lower abdomen pretty hard, not enough to leave a bruise but enough to cause redness. It happened about 3-4 hours ago, but now I'm starting to feel cramping and tightening around my stomach. I had a dr appt before it happened today and everything was perfect. Should I go to the hospital now or wait to see if I bleed? I'm 16 weeks today 😞