we didn't have sex .we are just Mading out .he wiped sperm from his dick by hand then wiped it on clothes.there was not that big amount of sperm i guess there was little unnoticeable sperm and he put finger inside my vagina.then after that i got bleeding on after 10-12 day i supposed to get periods it lasted for 4,5 blood clots are also there and i have severe lower back pain then after 4 weeks of that fingering incident i did usg abdominal and it showed Normal study then i started to have nipples pain(lasted5,6 days) and fever. after 14 days of this incident i again got bleeding it started with premenstrual symptoms like 1st one and it lasted for 5 days all the symptoms subsides after it and i again started having back pain after 1 days back pain subcides and sometimes and sometimes i have mild pain in left abdomen is did hcg test also which showed negative i have insufficient vitamin d.its been 7 weeks after that incident Is there any chances of ectopic pregnancy ? is there any chances of normal pregnancy? why i am having back pain .