Pregnancy after having a baby 9 weeks ago

So my husband and I waited 4 weeks to have sex after we had our baby and I don't breast feed because she had a bad reaction to my breast milk. But my period still hasn't come and I have mild symptoms of pregnancy but I'm not sure if I should take a test yet and which test I should take. Be no pregnant again wouldn't be horrible just need some answers. Please no negative comments. I really need answers to what I should do and some positive comments please.