Spotting at 7 weeks

The evening of the 7th i has sex with my hubby, he hit a lil hard and i felt pain. During the night i had for like 30 mins spotting not much blood but it was there, bright blood and there were some cloth. After that it stopped and during the day (8th) there was pink blood when i wiped. No cramps no pain. Now i don't have anything of that. I'm trying to call my doc but the army is being stupid again so i have to wait them to call me back. Should i be worried or not?