I have a 5 month old baby girl. I have been breast feeding her faithfully since birth, so I havnt had a cycle at all. Last week I had some light pink and brown spotting that lasted 2 to 3 days real light. And for the last two days this week I have had three dissy spells, light headed and I get flushed and hot. So yesterday after supper I had the spell and vomitted up my dinner. I have only been intimate twice since the birth of my daughter. Could I be pregnant?