Don't know how far along, need your help!

Sarah
Hey mama's, I found out I am pregnant from a blood test, and I have been gassy, and have indigestion, and frequent urination, and running low on energy, just feel like being lazy, yesterday I had a headache all day!! This is my second pregnancy, and this may be TMI.. (after my husband and I made love this morning, I got extremely dizzy, and emotional, I started crying right after)...with all these symptoms,does any of you might have a idea in your mind how far along? I think about 4 weeks, but I downloaded a app that says 5 weeks and 2 days. my last period was on the minipill on November 3-7, stopped taking it when I ran out a week later, and never had another period. The beginning of last week I took a blood test, and they said I am pregnant...