I had my son november 26 in 2012 planning to breastfeed so they put me on a specific birth control and told me i could take it as soon as i got it . In doing so i bled until january . But i never actually got to breastfeed . So i went to the hospital to see if the bleeding was normal , (me being a first time mom) and they changed my birth control to sprintec And the bleeding immediately stopped. This was mid-january . I was taking my bc up until my period started . I took the white pills and was going to start a new pack but i had no money to buy the new pack . This was late january . So i went from Jan25-feb27 without bc . But i continued to have sex. I did have my period starting feb.19 and it lasted my normal 4days . But it was only heavy the first 2days . My period never had s chance to be regulated by the birth control . three weeks ago i got a yeast infection . But it went away.after it went away i had sex 3days in a row. Now its back but the curds are tinged with pink . Is that implantation bleeding? I have been feeling nausea everyday for about a week and having headaches, fatigue , light cramps and little appetite . Also a lot of mood swings . But 3tests came back negative. Am i taking them too soon or is this the bc ? Anyone having this?