I had that exact same thing happen to me they had me come in everyday for a week to check hormone levels to make sure they were going up and to do ultrasounds because they only seen sac no fetus no heartbeat nothing i was just very early in the pregnancy i thought i was like 8 or more weeks and turned out to be barely 4 or 5 so fetus was not developed yet :-) so you could be just really early and i bleed every month until i was 5 or 6 months 1 or2 a month either having sex or over working and stress but i, 35 weeks 4 days today with no problems
Yeah it may be too early to see it
I had that at five weeks.cramp no bleed but had empty sac. .. and pool of douglas they call it puv pregnancy unknown viability..
I seen special scan woman internal scan at seven weeks showed all was ok :) . I'm now 17weeks :)
Rest up and try not worry your levels rising is a great sign.. ask for internal scan xx
how far along are you? it could still be to early to see the fetus .Light spotting and cramping is sometimes normal . red blood with clots is usually not .