Could I be pregnant? What do you think?

So, April 7or 8th I started my menstrual period. It was normal and heavy as usual. It ended about the 12th or 14th . I did have unprotected intercourse the following week( not sure of the exact day). I then came on what I believe was my period May 2nd . It started out light, I would wipe and it would be light red to pink, the cramps were really mild, it started getting a little heavier but still not like my usual cycle. It was spotty at times and a light flow at other times. This lasted 4 days. The day after this ended I started having mild cramps and gurgling in my belly. Til this day, I get on and off aches and gurgling. I've taken multiple home pregnancy test and they are all negative, but I'm just feeling so weird, I'm not really sure ! What do you think ?