Omg what the heck you guys...

At 13dpo I woke up in the middle of the night so sick to my stomach and ended up throwing up. (I didn't eat anything weird and I didn't drink more than a half an inch out of my glass so I know it wasn't that). Anyways, at 14dpo I started bleeding lightly all day and assumed it was AF but the cramps were not bad like they normally are. The bleeding stayed light for 14dpo and 15dpo. Last night at 15dpo after I had been nauseated on and off all day I came home feeling like I'd been hit by a truck. My temp was 99.73 and I couldn't get out of bed. Now this morning at 16dpo my temps are still at 98.58 and the bleeding has stopped but my abs feel like I did a million sit ups. I can't get an hpt today because my hubby has the atm card and he's at work so I can't get ahold of him. What do you think? Am I just sick AND having a very light and crampless AF? I could use any advice. Thanks!