Could I be pregnant? Even with negatives

Im currently TTC. Okay I've seen so many stories on TTC forums about women who tested negative on urine and bloods (like me) and still found out they were pregnant. My last period was 1/24 and the one before was 12/25. I had all the pregnancy symptoms including implantation pains and spotting in the 2 week wait. All my tests were negative....now I just have backache and little random pain in my pelvic are and stomach. The top picture is about 5-6 weeks ago and the bottom is today. There is no flab like before its just hard now. I really feel like I am and have hope. What's your thoughts? No negative people please. Thanks in advance!