my boyfriend and i had sex 6 times in a 48hour period he did not pull out but after the 6th time he noticed i was bleeding it was to early for me to start i had not experienced any menstrual feelings like normal i bled when i wiped and inserted a tampon thinking i had started, about 4 hours later i removed the tampon and there was no blood, long story short i do have an IUD i did spot for the next 2 days then one day was like a dark bloody period but then the day after i did not bleed, now im experiencing being tired and cramps/pain like it feels like my insides wanna fall out, is there a chance i can be pregnant?????