my husband and i had unprotected sex the other day and i gave birth almost 10 months ago and i was on the depo for 2 months then got off of it and my menstrual period has never came back but i recently went to the bathroom and when i wiped i found thick egg white like discharge in the toilet paper with a little bit of blood i dont know if it is a sign of pregnancy and  im also breast feeding but im substituting breast milk with formula also. please help.