No period for 5 weeks, bfn but feel odd!

[possiblyp18]

I havnt had my period for 5 weeks and in the past 5 days had 3 bfns most recent tonight ( not sure if there is a faint line waiting for bf to get back to look). I have been feeling funny for around a week or so now, sick everyday, tender breasts and tired. With my first child i had severe sickness so it makes me wonder.../ i have also been checking my cervix and its high soft and slightly open, not sure if its because i have already had a baby as to why it feels slightly open but there is also quite a bit of ewcm. Anyone got any opinions on whether i could be pregnant or not??