Negative Pregnancy Test But Having Pregnancy Symptoms

[xoxocha]

wondering how reliable pregnancy tests are?

my boyfriend and I only had sex twice this month. my period ended on the 19th of feb. and I had unprotected sex on the 25th of Feb, and 4th of March, using the withdrawal method. my boyfriend generally pulls out a few seconds before he ejaculates. My boyfriend also smokes.

Over the past recent days I've been having minor, short cramping, but sometimes it feels like the pain moves up to my ribs? I'm pretty sure some of the cramping was caused from wind. I've been passing wind quite a bit the past 2 days and have experienced minor diarrhea, and some minor constipation today. I've also been peeing a bit more frequently but not sure if it's just me taking more notice and over thinking the situation (maybe I've been drinking more fluids) or if the amount I urinate is completely normal as usual?  Only last night have I started to notice a slight rise in body temperature, and during the day today I felt like I had a few hot flushes, but at times I still feel physically cold. Around the 20th of Feb and so forth, I experienced creamy cervical mucus production, but as days went on it become less and less, now it appears that I hardly have any discharge at all? I do feel like I've been eating a bit more but it's hard to tell because I generally eat plenty anyways. Although, today I didn't feel like eating at all? Not sure if it was just stress though. Also, during the day today I experience some back pain - but this may have been from me sitting on a backless chair for three + hours? This may be unrelated but on the side note I've also been experiencing pain in my fingers, shoulders and other places around my body.

I have not experienced or noticed any other visible pregnancy symptoms so far. No morning sickness, no breast changes, no cravings, no spotting, no fatigue (in fact I've been feeling more awake than ever) etc.

My period is due in 2 or 3 days. I took a pregnancy test tonight, carefully following the instructions, and it came back as a negative.

Could I just be over-thinking and stressing about the situation, causing my mind to notice/believing I'm pregnant?
How reliable is a pregnancy test?
Whats the possibility I'm pregnant?

[krys7a]

Even^

[krys7a]

Im going though the same thing.  All you can do is wait. Stressing over it can cause a late period wvwn if your not pregnant. Just relax. And usually hpt's are pretty accurate. Evertime I have fallen pregnant the test told me about a day or 2 before my period was scheduled to come. If you miss your perod completely go to the doctor and get a blood test.