Oh no... did i put my baby at risk? ?

I have missed my period for an extended amount of time now but I am very irregular so I didn't think much of it. I'm on birth control but as of recent I've been feeling 'off'. Never have I slept so much or had so many headaches in my life and being suddenly queezy has made me think about things. I was on a medication for a while that I just now found out could render the effects of the bc and to make matters worse is I've been tanning on a regular basis for about a month. What could that have done to a potentially unborn very young child? All answers are very much appreciated.