Hey everyone~ ok , I am 14 weeks. . I havent been workin out at all sense I found out. .Well I decided I wanted to start working out a little bit to keep in best shape I can while all my extra lbs come.. But thing is I seem to get tired and my heart beats fast really easy. .Like I was trying to follow this excersize show today and after like 3 minutes I was exhausted?? Is this normal? Maybe I just need to build up. . It wasnt even aerobics tho. Does anyone else have this prob?