Possibly pregnant?

I haven’t had a period since August 30th-September 1st

Me and my boyfriend did have unprotected sex a few times that month but it was several times in like two-three days, I did take a morning after pill and the one I took it was okay for me to take after three dats, just less effective. Then I started my period a few days after which was August 30th.

I was visiting him in NC during that time and then went back home to AL, while I was home I went to my health department and got put on the Depo shot September 24th. I still had not had my period for that month and I’m assuming they did test my urine for a possible pregnancy before putting me on birth control.

Then I officially moved in with my boyfriend October 3rd and we’ve been having unprotected sex ever since minus my Depo.

The last few days I’ve been feeling extremely nauseous and I’ve been very constipated which are not normal for me, I’ve also been getting either extremely hot or extremely cold and my boobs are very sensitive.

I did take a pregnancy test a few days ago just incase the morning after pill possibly didn’t work or my birth control didn’t take because I have been feeling EXTREMELY off lately and it came back negative.

I’ve been on Depo before for 2 1/2 years and never felt like this. And I did feel a little off before I got on it.

I also have a five year old from a previous relationship and with him I didn’t find out until I was 3-4 months along and didn’t have any other symptoms other than feeling like I needed to take a test so I really have never dealt with “early” pregnancy symptoms so idk what I should be looking for.