Hi, i had my last period july,4 13 (im not in any birth control) on july 16 my partner and i were together and he forgot to pull out. I had pain on my left Ovary for about 8 hours on july 18 so im guessing that was ovoluation pain? On july 19 i had some vomiting but i contribute that from exercise and a lot of water also headaches from then to now. On july 21 i started with diarrhea out of no were and it lasted about a day and a half. From july 22 to now i've had backpain, cramps, bloating and some slightly sore boobs. Im due for my period around aug 1-4 since my period is usually 28-30 days apart. My question is does it sound like my period coming or early pregnancy signs?