Ok ladies! Here we go!

So yesterday my period was 5 days late. I am never late. Mid afternoon I got real intense cramps similar to gas pains ans then I had clear cm with red streaks and then later at night I had pink spotting. this morning I had pink spotting and now it's bright red with a little bit of clotting but not as heavy as a period. I have had off and on low cramps all day. I have also had intense lower pack pain for about 4 days and today I feel like I could fall asleep at any minute. also my boobs are lookin veiny. haha sorry alot of tmi but no other way to say it. Has anyone else experienced this? I don't have any kids yet so I have no idea.