Symptoms.. Pregnancy?

I've been having pregnancy symptoms for about a month now and I never have pms symptoms so I'm hoping this is it ... cravings,backaches,headaches(now gone),cramps on the right and left sides of abdomen, and spotting (more then once).. Not really sure because I haven't gotten my bfp yet. Went to get an ultrasounds for the cramps and backaches but I would have only been 4 weeks and 2 days if I was pregnant they said everything was normal... Now I would be about 5 weeks .. So just wondering what your guy's symptoms were 4-5 weeks? And when did you find out you were pregnant ?