I don't know

If I am pregnant or not. I live in Houston, TX. on Sunday i slipped and fell which forced me to make a split. I pulled a leg muscle, but otherwise I felt fine. Later on in the day my stomach started hurting like mild cramps and I noticed that I was bleeding when I wiped. It wasn't much but it was quite a bit. Due to Tropical Storm Harvey we had to be rescued from my sister's house and we walked through knee deep water and then I jumped and did a lot. I woke up early this morning and I was bleeding more. I'm very irregular so I haven't started my period but now I'm bleeding and I don't know if I was pregnant or not. It's not a lot of blood, but I had put a pad on just in case. I also can't get to a hospital or anything because of the flood waters. So I'm kinda stuck until the water recedes. I don't know what to do. I am still having cramps. Also, I took a PG test on friday and it was negative. What do you guys think?