leaking water and light bleeding?

so i might be pregnant ive had some iffy tests and according to this app i was suppose to start my period yesterday. well today my bf and i went to the store and i started cramping. when we got home it felt like i was bleeding so i checked but i was just leaking clear watery stuff. the cramps got so bad i took a bath and some pain meds. i got a little nauseous arounf the time i got out and felt like i was leaking again so i check and i was spotting pinkish so i put a pad on and felt like i was gushing blood so i checkrd my pad to see if i was bleeding and it was just that clear water again... any ideas on whats going on?? i need help!?