Implantation?

Katie

Help!! Ok so my period was from July 19-22. Well in the 27 I had 1 drop of blood on my liner. Didnt think anything of it. Then on the 30 I was on my way to work and had to stop 3 times to get sick. Have had really bad headaches, cramping, bloating, nausea, swollen feet and ankles, extreme sore breasts, and acne. Today on August 4 I had 1 more drop of blood. Could this be implantation blood. I have never had this before. Plus I can not do my regular lifting and bending at work because I get out of breath and it made me get sick also. We have been trying for a year to start a family. My period is bot due till the 19 of this month. What should I do?