Hello and welcome, I understand your symptoms. However, the symptoms you mention are not specific for pregnancy and may occur due to many reasons. Common cause of bloating is indigestion and gas. Also the stomach becomes bigger in pregnancy after 3-4 months and not in 2 months. If the test is negative the reason is likely to be other than pregnancy. Hormonal imbalances, weight gain, ovarian cysts, stress and menopause all may lead to absent periods. So you need a gynec evaluation and an ultrasound with hormone testing to know the cause. Even if a pregnancy is there it will be seen on sonography. Hope this satisfies your query. Thanks for using HCM. Feel free to ask any more questions that you may have. Dr Madhuri Bagde Consultant Obstetrician and Gynecologist