Pregnant again? 8 weeks post partum

OMG OMG OMG!!

I am freaking out you guys could it be possible? So I’m 8 weeks post partum and the last couple of days I’ve been feeling nauseous light headed and cramping so today my husband brought me a pregnancy test and there is a very very faint line could it just be left hcg from my 8 week old baby? If there’s any one of you who had a baby in August 15 and you happen to have a pregnancy test laying around the house would you pls pls do it and tell me if it comes back positive?!

Sorry for the TMI BUT!

I should say I did have sex exactly at 6 weeks ( he didn’t finish) but... he had just masturbated prior to us having unprotected sex 😓 but honestly I though since I had just stop bleeding literally two days prior I never thought it could happen but now writing this I do feel stupid i mean I just can’t believe this pls help!!