condoms with spermicide can dry out the vagina. if you're not wet enough or not using lubricant it can cause tearing. that might have been the blood you saw the first time. but the second time was probably just your period because of the amount of blood.
Hi there!
It could just be your period, but my first time I was bleeding for 3 days straight and it wasn't my period. Its pretty normal. If it continues I would definitely go see your Dr just to be safe.
Take care!