Pregnant?! Hopefully!!

So my cycle starts every 20-24 days. My last period began 01/19 and lasted for 5 days. On 01/27 (CD 9) me and my Bf did the deed (unprotected). Ever since CD 13 my nipples have been SUPER painful to touch & I’ve almost thrown up once.

Yesterday night when I went to the bathroom there was small drops of blood. There’s no blood now so I think this was possibly implantation since im only on CD 17.

What do y’all think? Do you think its implantation/ pregnancy or just the start of AF? 😤