<s>[INST] Hai... past underwent 3 miscarriages after taking inj.progestrone. 2 were chemical pregnancy and 1 is sac was formed but miscarriage happened. now I am having the pregnancy symptoms my last LMP was on 40 days back. [/INST] Hello, Welcome to Icliniq. Based on your obstetric history , it is necessary to evaluate the cause for your recurrent miscarriages. But please don't be disheartened if sometimes no cause is found which happens quite a lot of times. Dear, Progesterone injection will never cause miscarriages as progesterone is the hormone that is required for the continuation of pregnancy and act as a support for pregnancy. So the most common causes for recurrent miscarriages can be either Thyroid hormonal abnormalities or impaired blood glucose levels, or sometimes immune causes like APLA syndrome. As per your LMP, you are exactly 6wks pregnant today, so try to get a scan to check if this is a viable pregnancy and also for dating and localisation of pregnancy, so that if viable we can start with progesterone support in the form of oral progesterone supplements to sustain this pregancy. Also I have mentioned the blood test that you need to undertake apart from the routine Antenatal investigations to look for any abnormalities I mentioned above. Please do get them done.  Please feel free to contact me in case you have any queries. - Blood group and Rh Typing, - Complete hemogram, - Hb Electrophoresis, - Urine routine and microscopy, - LFT/ RFT - 75 g Oral Glucose tolerance test ( in each Trimester). - HbA1c level, - HIV, VDRL, HBSAg, Anti HCV. - APLA work up that includes 1) Lupus Anticoagulant, 2) Beta 2 Glycoprotein IgG & IgM, 3) Anti cardiolipin antibodies IgG & IgM. - NT scan (11-13weeks), - Dual marker test ( 11-13weeks). - Level 2 Scan (18-20weeks) - to look for any structural or developmental anomalies in the fetus. - To consider progesterone supplements (either oral, vaginal or injectables) after checking viability. - Low dose aspirin or Heparin may be considered after Ultrasound for viability & the blood tests evaluation. - Avoid intercourse in the first trimester. - Small meals at frequent intervals to avoid nausea or bloating. </s>