I have been on Metformin ( a GYN drug that induces ovulations...basically makes you extra fertile. I went on it when I was so completely stressed that I stopped ovulating for one month) and now my period is a bit late. Its usually on time and I took a test two days ago at my 7th day of missing my period and it came back negative. However, I have been researching and some will take a test one day and then a few days later it comes back positive. My breast are a TINY bit sore, no nausea yet and with the insomnia..I have a Dx sleep disturbance and am currently taking Ambien. However, if I am in fact pregnant, I need to find out asap so as to get off any medication that may be harmful to the zygote. I could use some guidance and/or advice....