I started my period today, it also stopped i think... I use tampons. If I am under a lot of stress, will that make it stop? Plus I haven't ate anything today. I'm not pregnant either.

Sometimes periods may be slow to start. See what happens the next couple of days. Stress can cause an off cycle... sometimes shorter, longer, sooner, later, lighter, or heavier than the norm.

Okay. I have a question. I was on my period yesterday and I still am but anyway, this is kind of a stupid response but my boyfriend an I got intimate. He dicides to do a alternative thing because I was on my period. So, he did anal. But by the position I was in he missed to whole and went into my vagina while I had a tampon in. Can I get pregnant if he stuck it in and I had a tampon in and he just stuck it in for like 4 seconds? H didn't ejaculate either.

If he had any of his fluids, it is possible. But it is not likely.

He should be able to tell the difference and take time to be in position. Sounds like he rushed in,

Any time there is penile insertion there is the risk of pregnancy. Given the circumstances, I would doubt if pregnancy will result, but we can't say positively that it won't.

Possible, but very unlikely.

Play adult games... be prepared to pay adult prices. But he will likely disappear not long after that happens if he hangs around that long... and you will be left to bear the burden alone.