me and my boyfriend had sex on the 26th of march, i ovulate on the 28, the 5 of april, ten days later i was spotting at first it was bright red then dark brown it was only some drops i didn't even need to change pad.. tmi. some days later i started feeling nauseos and i felt little cramps for around 4 or 5 days it didnt hurt much at first i thought it was my period coming but i checked and nothing i looked up and it said cramps were a symptom for pregnancy. but on the 11 of april i got what seems to be my period ,is there a way i can still be pregnant or im not?