Spotting

I’m 6 weeks pregnant. Almost 7. Monday me and my boyfriend has sex and there was blood.(but it was dry and I wasn’t sure where it came from, but I figured spotting even though it didn’t look like it.) the next night it happened again, but it was spotting. And last night it did it. And it’s doing it again today. It’s not bad but I’m just worried is it normal to do it more than a few times??